31 5mm automatic door opener and closer

{"cid":"91201827","title":"90\u00b0 Concealed Door Closer , Automatic Door Opener And Closer 230\u00d758.5\u00d731.5mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/8c\/45\/493bdaccc4630efe33611a9bb06f-200x200-1.jpg","attrs":{"Price":"USD 3.468 - 12.698 \/ Pc","Brand Name":"HANZSON","Minimum Order Quantity":"100 Pcs","Delivery Time":"30 work days","Place of Origin":"Foshan, China","Payment Terms":"T\/T, L\/C","Supply Ability":"10000 Pcs per Month","Packaging Details":"50 pcs per ctn","Material":"Aluminium","Name":"Door Closer","Feature":"Automatic","Type":"Spring","Kind":"Multiple Scenarios","Treatment":"Matt Black Stainless","Style":"Modern","Color":"Customized"}}

{"cid":"91225849","title":"Iron Automatic Door Closing Spring Hinge 90 Degree Positioning Door Closer Wooden Door Model 03 2.5mm Thickness Xiongfeng Modern","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/9a\/32f05ea164dbbd55ed7aecc1f779-200x200-1.jpg","attrs":{"Price":"$1 \/ piece","Brand Name":"xiongfeng","Model Number":"03","Minimum Order Quantity":"2 pieces","mail packing":"Y","Place of Origin":"None","design style":"Modern and Simple","Material":"Iron","opening angle":"90\u00b0","Number Of Holes Per Leaf":"10","Thickness":"2.5 mm(0.10in)","type":"Furniture Hinge","Installation":"Wall Mount, Door Mount, Surface Mount","application":"wooden door","Feature":"automatic closing, 90-degree positioning, spring hinge"}}