... .zinc plated,black,etc 4.flat,pan, etc. types of hinges 1.Surface Finish: annealing, natural anodization, heat treatment, polishing, ... hardware for many years,we have been in constant pursuit continous progress.6.We commit ourself to smile to each customer1 ... )Details: Product name types of hinges Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS4202.Steel ...