... precision parts 1.Material:copper 2.Size:as you required 3.finished nigrities 4.competitive price brass cnc machining precision parts ... hours. Our main products as below:Materials: stainless steel, copper, steel, aluminum alloy, zinc alloy,etcDifferent kinds of finish ... hours. Our main products as below:Materials: stainless steel, copper, steel, aluminum alloy, zinc alloy,etcDifferent kinds of finish ...