... Precision Turned Part/CNC Lathe Part, Made of Brass, Copper, Bronze, and Stainless Steel Precision turned ... roughness tester, hardness tester, and concentricity tester) assembling Material: copper, brass, bronze, aluminum alloy, zinc, stainless steel, and iron ... and heat treatmentPrimary Competitive Advantages:"Green" Product Country of Origin Experienced Technical Staff Price Prompt Delivery Quality ...