hvac systems 4 inch flexible duct

{"cid":"91220443","title":"Flexible Duct Cold Air Intake Pipe for HVAC System 8 Inch Aluminium Foil Plastic Blade","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/ad\/b4c1deb9bf1290d27903a178670d-200x200-1.jpg","attrs":{"Price":"$5.50\/rolls 100-499 rolls","Brand Name":"ELMAK","Minimum Order Quantity":"100 rolls","Type":"Axial Flow Fan","Applicable Industries":"Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Food & Beverage Factory","Customized support":"OEM, ODM","Electric Current Type":"AC","Mounting":"Duct Fan","Blade Material":"Plastic","Place of Origin":"Zhejiang, China, Zhejiang","Voltage":"240V","Warranty":"3 years","After-sales Service Provided":"Online support","Mechanical Life":"3 Years","Product name":"Ventilation","Color":"white","Certification":"CE","Air Quantity":"162-252","Material":"Plastic","Power":"23-65","Packaging Details":"Standard Export cartons","Port":"NINGBO","Supply Ability":"100000 Piece\/Pieces per Month"}}

{"cid":"91225592","title":"15m Flexible Shaft Duct Cleaning Machine Industrial Ventilation Duct Cleaner Central Air Conditioning Cleaning Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/36\/6d\/361c0f867eaacc6881eafeacc4e3-200x200-1.jpg","attrs":{"Price":"1300USD","Brand Name":"BEIJAMEI","Model Number":"Multi-Specification","Minimum Order Quantity":"1Set","Delivery Time":"7 Work Days","Applicable Pipe Diameter":"5","Purpose":"Ventilation Duct Cleaning And Dust Removal","Supply Ability":"In Stock","Function":"Ventilation Duct Cleaning And Dust Removal","Certification":"CE","Packaging Details":"Wooden Box","Place Of Origin":"China","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,","Rotating Speed":"0-1400r\/min","Flexible Shaft Length":"15m","Weight":"15kg"}}