Factory Custom Single Double Layer Thickened Aluminum Foil Tube Water Heater Telescopic Ventilation Tube

Product DescriptionFunction: Suitable for ventilation equipment such as range hood,gas water heater, ventilation fan, central air conditioning, etcCross-Section ShapeRectangular QualityTop highService temperature-70~+350ºCuseAir DuctCompressive StrengthstrongDetailed Photos  Company Profile  FAQQ: Are you trading company or manufacturer ?A: We are factory.  Q: How long is your delivery time?A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.  Q: Do you provide samples ? is it free or extra ?A: Yes, we could offer the sample for free charge but do not pay the cost of freight.  Q: What is your terms of payment ?A: Payment=1000USD, 30% T/T in advance ,balance before shippment.  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1