... 1.Description: door hinge 2.Material:stainless steel,carbon steel,alloy, aluminum and so on. 3.OEM service avaiable door hingeWe would ... like to provide you all kinds of stainless steel handle as per ... steel casting, alloy steel casting3. Certificate: DIN, AISI, ASTM, BS, JIS, ect.4. Heat Treatment, polishing, plating, machining, ect.5. Application: Industrial ...