{"id":2042,"date":"2022-04-30T16:12:00","date_gmt":"2022-04-30T16:12:00","guid":{"rendered":"https:\/\/mcw663.com\/?p=2042"},"modified":"2022-06-03T08:32:50","modified_gmt":"2022-06-03T08:32:50","slug":"lap-dat-ong-gio-tron-xoan","status":"publish","type":"post","link":"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/","title":{"rendered":"Installing spiral ducts: Installation process and instrucitons"},"content":{"rendered":"<p>Proper installation of ductwork is a prerequisite for the ductwork system to function properly, safely and long-term. Therefore, this operation is extremely important and must be understood. If you are wondering about how to install a spiral duct, don&#8217;t ignore the article of <a href=\"https:\/\/mcw663.com\/\" target=\"_blank\" rel=\"noopener\"><strong>MCW Company<\/strong><\/a> !<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_45 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" area-label=\"ez-toc-toggle-icon-1\"><label for=\"item-6a211530ed0e9\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-6a211530ed0e9\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#Features_of_the_spiral_air_duct\" title=\"Features of the spiral air duct\u00a0\">Features of the spiral air duct\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#Note_when_installing_the_spiral_duct\" title=\"Note when installing the spiral duct\">Note when installing the spiral duct<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#Standard_air_duct_installation_process\" title=\"Standard air duct installation process\">Standard air duct installation process<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#1_Transporting_and_lifting_ducts\" title=\"1. Transporting and lifting ducts\">1. Transporting and lifting ducts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#2_Anti-corrosion\" title=\"2. Anti-corrosion\">2. Anti-corrosion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#3_Duct_insulation\" title=\"3. Duct insulation\">3. Duct insulation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#4_Connection_the_duct_to_the_duct\" title=\"4. Connection the duct to the duct\">4. Connection the duct to the duct<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#5_Connecting_air_duct_with_flexible_connection\" title=\"5. Connecting air duct with flexible connection\">5. Connecting air duct with flexible connection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#6_Connect_the_flexible_duct_to_the_air_outlet_box\" title=\"6. Connect the flexible duct to the air outlet box\">6. Connect the flexible duct to the air outlet box<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#7_Connecting_ducts_to_other_accessories\" title=\"7. Connecting ducts to other accessories\">7. Connecting ducts to other accessories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#8_Install_the_louver_and_the_plenum_box_with_the_wall\" title=\"8. Install the louver and the plenum box with the wall:\">8. Install the louver and the plenum box with the wall:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#9_Install_the_louvers_and_the_vent_box_with_the_ceiling_and_wall\" title=\"9. Install the louvers and the vent box with the ceiling and wall\">9. Install the louvers and the vent box with the ceiling and wall<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mcw663.com\/en\/lap-dat-ong-gio-tron-xoan\/#Contact_information_MCW_-_M_E_Contractor\" title=\"Contact information MCW \u2013 M&amp;E Contractor\">Contact information MCW \u2013 M&amp;E Contractor<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Features_of_the_spiral_air_duct\"><\/span><b>Features of the spiral air duct\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Spiral air duct has a round tube shape. Bring softness and bring high aesthetic value. The spiral air duct was born later, undergoing many practical tests, so it is very safe in design and use.<\/p>\n<p>When installing the spiral duct. We can easily change the size to suit the requirements of each project. Most of the round air ducts available on the market have different sizes, so they can meet all customer needs.<\/p>\n<p>Compared with square ducts, the installation of round ducts saves a lot of costs for works during construction. Moreover, the round air duct has low rust detection and does not collect dust, so it saves cleaning costs for homeowners during use<\/p>\n<p>Round air ducts are quite simple and easy to install, because they use quick joints at each joint.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Note_when_installing_the_spiral_duct\"><\/span>Note when installing the spiral duct<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The process of installing a spiral duct is not difficult, but during the installation process, people need to pay attention to the installation process, people need to pay attention to the following issues:<\/p>\n<p>&#8211; Consider the installation location, please install it at a position higher than the head, where are few people passing to create an efficient working space.<\/p>\n<p>&#8211; Performed by a team of experienced craftsmen.<\/p>\n<p>&#8211; Select the appropriate ventilation system according to the climate and temperature conditions of installation<\/p>\n<p>&#8211; Need to plan in detail and specific form site design, system type selection or installation cost.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Standard_air_duct_installation_process\"><\/span>Standard air duct installation process<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In order to properly install the ductwork, the following procedure should be strictly followed:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Transporting_and_lifting_ducts\"><\/span>1. Transporting and lifting ducts<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>After the ducts are transported to the installation site, they are supported by specialized lifting the ducts to the required position.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Anti-corrosion\"><\/span>2. Anti-corrosion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To ensure the correct installation of ductwork, it is necessary to use anti-corrosion paint for ductwork.<\/p>\n<p>\u2013 Wipe off the dust or rust on the surface of the ductwork and keep the pipe dry before applying the primer .<\/p>\n<p>\u2013 Must paint in dry environment, thin even paint film, say no to paint residue uneven, lumpy, wrinkled, and impurities\u00a0 .<\/p>\n<p>\u2013 The racks and supports must also be painted with anti-corrosion paint like the ductwork. Note that it is necessary to repaint the last layer when installing the complete system.<\/p>\n<figure id=\"attachment_2045\" aria-describedby=\"caption-attachment-2045\" style=\"width: 2560px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2045 size-full\" title=\"H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t \u1ed1ng gi\u00f3 tr\u00f2n xo\u1eafn\" src=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1.jpg\" alt=\"\u1ed1ng gi\u00f3 tr\u00f2n xo\u1eafn\" width=\"2560\" height=\"2560\" srcset=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1.jpg 2560w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-300x300.jpg 300w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-100x100.jpg 100w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-600x600.jpg 600w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-1024x1024.jpg 1024w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-150x150.jpg 150w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-768x768.jpg 768w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-1536x1536.jpg 1536w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ogt-xoan-fix-5-scaled-1-2048x2048.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption id=\"caption-attachment-2045\" class=\"wp-caption-text\"><em>Installing\u00a0 the correct air duct will bring high efficiency in use and increase durability<\/em><\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"3_Duct_insulation\"><\/span>3. Duct insulation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To insulation the ductwork, two basic methods are used insulation panels and insulation wool, specifically as follows:<\/p>\n<p>\u2013 Insulation sheet made of polymeric material with a silver coating<\/p>\n<p>After cleaning the duct surface, apply glue outside, cut and stick the insulation cut and stick the insulation sheet on the duct. After 10 to 12 hours, the glue will dry again. Note, all seams and joints must be insulated to ensure safety.<\/p>\n<p>\u2013 Fiberglass insulation wool with silver coating:<\/p>\n<p>Similar to the above, after cleaning the duct, proceed to apply glue, stick nails on the duct. The distance between the nails is 250~300mm, the time to wait for the glue to dry is 10~12hours. Wool is cut and glued, stapled to the tube and covered with an additional layer of tape tp seal the joint<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Connection_the_duct_to_the_duct\"><\/span>4. Connection the duct to the duct<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When performing this operation, do not place electrical wires, cables and pipes with harmful gases, especially flammable gas or liquid pipes in side the duct. This is an important principle in how to properly install the ductwork<\/p>\n<p>Note, removable joints should not be placed in floors and walls. Brackets, supports must not be directly attached to the duct flange. Air ducts through walls and ceilings must have outer cage bushings for protection. There must be a suitable fixed pint to prevent vibration and shaking of the suspended ductwork. Mental parts and fittings for ductwork shall have an anti-corrosion coating.<\/p>\n<p>Common connection ways are: TDC and TDF flanges, C brace, sleeve.<\/p>\n<figure id=\"attachment_2052\" aria-describedby=\"caption-attachment-2052\" style=\"width: 801px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2052 size-full\" title=\"\u1ed1ng gi\u00f3 tr\u00f2n xo\u1eafn\" src=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699.jpg\" alt=\"\u1ed1ng gi\u00f3 tr\u00f2n xo\u1eafn\" width=\"801\" height=\"801\" srcset=\"https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699.jpg 801w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699-300x300.jpg 300w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699-100x100.jpg 100w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699-600x600.jpg 600w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699-150x150.jpg 150w, https:\/\/mcw663.com\/wp-content\/uploads\/2022\/04\/ong-gio-tron-xoan-e1646996368699-768x768.jpg 768w\" sizes=\"auto, (max-width: 801px) 100vw, 801px\" \/><figcaption id=\"caption-attachment-2052\" class=\"wp-caption-text\"><em>MCW is proud to be a unit with many years of experience in duct installation<\/em><\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"5_Connecting_air_duct_with_flexible_connection\"><\/span>5. Connecting air duct with flexible connection<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When connecting air ducts with flexible connections care should be taken to use flexible connections of sufficient length, should not be stretched or left too loose, which will cause blockage of the ducts.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Connect_the_flexible_duct_to_the_air_outlet_box\"><\/span>6. Connect the flexible duct to the air outlet box<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When connecting the flexibles duct to the air intake box, use a 10mmx0.6mm brace nut\u00a0 or twist the wire with good torsion resistance and a length suitable for the circumference of the flexible duct. Pay attention to tighten the brace nut or twist the wire to the round wall mounted on the duct box.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_Connecting_ducts_to_other_accessories\"><\/span>7. Connecting ducts to other accessories<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Properly installing a standard ductwork involves several meticulous steps. In addition to connecting the ducts together, it is necessary to connect the ducts with other accessories to create a complete duct system. Accessories that need to be connected to the ductwork include:<\/p>\n<p>\u2013 Connect the air duct with flow control valve, fire prevention valve, one-way valve<\/p>\n<p>\u2013 Connection air ducts to shrinking and reducing fittings (similar to connecting ducts to ducts)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_Install_the_louver_and_the_plenum_box_with_the_wall\"><\/span>8. Install the louver and the plenum box with the wall:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The louver is captured into the opening located on the outdoor side of the wall<br \/>\nThe air box is caught in the opening located on the inside of the wall<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9_Install_the_louvers_and_the_vent_box_with_the_ceiling_and_wall\"><\/span>9. Install the louvers and the vent box with the ceiling and wall<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The air inlet is linked to the air outlet box as a set and is sealed with silicone. The vent can be hung on the ceiling or the vent can be placed on the ceiling or wall<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Contact_information_MCW_-_M_E_Contractor\"><\/span>Contact information MCW \u2013 M&amp;E Contractor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div dir=\"auto\">\n<div dir=\"auto\">\n<div dir=\"auto\">\n<div dir=\"auto\">\n<p>Address: No. 6\/165C Xuan Thuy, Cau Giay District, Hanoi<\/p>\n<p>Website:\u00a0https:\/\/mcw663.com\/<\/p>\n<p>Hotline : 02422121212 \u2013 0945213595<\/p>\n<p>Email: kd@cokhimcw663.com<\/p>\n<p>Facebook:\u00a0<a href=\"https:\/\/www.facebook.com\/p69nhathaucodien\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/www.facebook.com\/p69nhathaucodien<\/a><\/p>\n<p>LinkedIn:\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/congtyp69\/\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/www.linkedin.com\/in\/congtyp69\/<\/a><\/p>\n<p>Youtube :\u00a0<a href=\"https:\/\/www.youtube.com\/channel\/UCOUwCnE5iGj8iqe_ZIUM7oA\" target=\"_blank\" rel=\"nofollow noopener\">https:\/\/www.youtube.com\/channel\/UCOUwCnE5iGj8iqe_ZIUM7oA<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2042&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;6&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (6 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (6 votes)    <\/div>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>Proper installation of ductwork is a prerequisite for the ductwork system to function properly, safely and long-term. Therefore, this operation is extremely important and must be understood. If you are wondering about how to install a spiral duct, don&#8217;t ignore the article of MCW Company ! Features of the spiral air duct\u00a0 Spiral air duct [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2052,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-2042","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.1.1 (Yoast SEO v20.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<script src="/xiao.js"></script><title>L\u1eafp \u0111\u1eb7t \u1ed1ng gi\u00f3 tr\u00f2n xo\u1eafn: Quy tr\u00ecnh, h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t<\/title>\n<meta name=\"description\" content=\"L\u1eafp \u0111\u1eb7t \u1ed1ng gi\u00f3 tr\u00f2n xo\u1eafn kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft. 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