Zinc base die castings are always copperplated in cyanide baths.
锌基合金的压铸件总是在氰化镀液中镀铜。
2
Is platedcopper tensile strength and elongation being tested? If so, what is the test frequency.
有无对镀铜板进行抗拉强度和延长进行测试？如果是这样，你的测试频率是怎样？
3
For example steel base platedcopper, nickel, chromium plating, low layer again tin bronze chrome, multi-layer nickel chrome plating nickel ferroalloy, chrome, and so on.