... company, we can offer the test report to you depending on your requirement.4). The raw material can be nickel ... silver, copper-nickel-zinc alloy, stainless steel, tinplate, etc. It depends on your requirement. 5). Surface coating: zinc, silver, copper, black ... formatsAuto CAD, Pro/E, 2D, 3DMOQ3000 Pcs, the quantity depends on your product We can design and fabricate complex precision tooling ...