Building Fire damper

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{"cid":"107262","pid":"21060931","pimg_url":"\/\/img1.b2bforus.com\/a2\/1f\/51c4b4c490cf\/product\/70018469_s-w400xh400.jpg","name":"HVAC Air Duct Fire Damper Traditional Automatic Fire Damper For Ductwork","attrs":{"Price":"$6.89(100 - 499 Meters) $6.19(500 - 999 Meters) $5.52(>=1000 Meters)","MOQ":"100 Meters","Delivery Time":"Negotiable","Brand":"FL, FL"}}

{"cid":"107262","pid":"21060918","pimg_url":"\/\/img1.b2bforus.com\/a2\/1f\/51c4b4c490cf\/product\/70018405_s-w400xh400.jpg","name":"Aluminum\/Galvanized Steel Sheet HVAC Fire Damper For Duct Air Ventilation Pipe Damper","attrs":{"Price":"Negotiable","MOQ":"100 Pieces","Delivery Time":"Negotiable","Brand":"FL"}}

{"cid":"107262","pid":"21060901","pimg_url":"\/\/img1.b2bforus.com\/a2\/1f\/51c4b4c490cf\/product\/70018341_s-w400xh400.jpg","name":"Traditional HVAC System Galvanized Steel Round Duct Damper Volume Control Damper","attrs":{"Price":"Negotiable","MOQ":"100.0 Pieces","Delivery Time":"Negotiable","Brand":"FL"}}

{"cid":"107262","pid":"21060886","pimg_url":"\/\/img1.b2bforus.com\/a2\/1f\/51c4b4c490cf\/product\/70018268_s-w400xh400.jpg","name":"Aluminum \/ Galvanized Steel Sheet HVAC System Galvanized Steel Fireproof Round Manual Fire Damper Connect To Round Duct","attrs":{"Price":"Negotiable","MOQ":"100 Pieces","Delivery Time":"Negotiable","Brand":"FL"}}