We are manufacturer in China. Our standard parts are applied to many fields, such as auto; bicycle; ... and so on. We are manufacturer of all kinds of standard parts in Ningbo, Zhejiang, ChinaDetailed product description:Features:1) Material ... steel, aluminum and copper2) Weighe: 0.150kg3) Standard: DIN, ANSI, JIS, BS and GB standard, also with ISO9001 certificate4) Surface finish: galvanization, color ...