door hinge 1.Delivery time:7days 2.OEM:manufacturer 3.ISO9001:2008, ROHS 4.ISO,GB,DIN,JIS,ANSI hardware fitting 1.Complete size M4-M36; Variety of materials:Carbon steel, Stainless steel,copper; Fine surface trearment: Plain, zinc plated etc.2.Variety of standards:ISO,GB,DIN,JIS,ANSI3.We have passed ISO9001-2008,SGS,ROHS certificate.4.We have a lot of years technical experiences, we are engaged ...