aluminum hinge 1,high precision in machining 2,excellent surface treatment aluminum hinge aluminum part aluminum product aluminum ... ,1070,2011,2017,2021,2024,3003,5052,6060,6463,6082…2,The processing methods including: Aluminium profile extruding,Precise cutting,Straight ... national standard GB/T6892-2006 and Europe standard EN12020-1,2(2001) and American standard AAMA611-98.5,OEM offered.