door retractor

{"cid":"91154503","title":"constant force spring","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/70\/bc\/e4f3c294d271e76deb4f731abc85-200x200-1.jpg","attrs":{"Price":"FOB USD 0.1~3.5 \/ Piece","Brand Name":"lispring","Minimum Order Quantity":"100","Delivery Time":"About 15 days","Place of Origin":"china","Certification":"ISO9001","Packaging Details":"polybag with box","Payment Terms":"T\/T","Supply Ability":"10,0000 Piece\/Pieces per Month Week","Style":"Flat;Leaf;Plate","Load Type":"Compression","Material":"Steel","Usage":"Industrial"}}

{"cid":"91184222","title":"IEC 60598 Sand And Dust Chamber\u00a0, Climatic Test Chamber\u00a03-5kg\/Cm3 Air Source","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/e9\/ce\/7f71982bc634014ecb07e6b72728-200x200-1.jpg","attrs":{"Price":"","Brand Name":"iqualitrol","Model Number":"QDT-1000","Minimum Order Quantity":"1 Set","Delivery Time":"20 Working Days","Certification":"","Place of Origin":"","Payment Terms":"T\/T","Supply Ability":"10 Sets per Month","Packaging Details":"Plywood Box","Internal Size":"100*100*100cm (W*D*H)","Test Temp":"25~40\u2103(natural temperature without control)","Test Humidity":"45~85%RH(natural temperature without control)","Dust concentration":"F1: 60000mg\/m3","Dust spray period":"1sec~99hr","Air source":"3~5kg\/cm3"}}