... ISO 9001:2000 certified manufacturer of stamping, punching, welding,threading,sheet metal cutting,deep draw and bending in china. Our products vary ... : Stainless steel(303, 304, 316), Brass(H58,H59,H60), Aluminum(6061, 6063,7075), Aluminum alloy,A360, A380, A383, AlSi10Mg, ADC10, ADC12, ZL104 ...