... to corrosion and durable. Heavy duty stainless steel folding door hinge for frameless glass door hardware SA8500H-7 1)1. Material: SUS 304 ... the manufacture that special in producing sliding door ,swing door,moving gate,folding door ,glass hinge,spider,handle lock patch fitting,and ... outdoor exposure Certificate Heavy duty stainless steel folding door hinge for frameless glass door hardware SA8500H-7