1.material:carbon spring steels HRC 40-50 2.stainless steels HV300-500 3.finish:zn,geomet 1. Item name: s clip from china2. Material: stainless steel, iron, copper, aluminum, carbon steel3. Surface treatment: nickel, white zinc, blue zinc, color zinc, yellow zinc, black zinc, chrome4. Standard: JIS, BS, GB, ISO, DIN, AISI5. Size: all sizes6. The use of this product is very broad, can be used for ...