Sheet metal parts 1.Certificates: ISO 9001:2000 2.High quality, ... ISO 9001:2000 certified manufacturer of stamping, punching, welding,threading,sheet metal cutting,deep draw and bending in china. Our products ... hardware and etcProductdescription 1.Material: Stainless steel(303, 304, 316), Brass(H58,H59,H60), Aluminum(6061, 6063,7075), Aluminum alloy,A360 ...