... cold work mold bistoury,valve part,bearing etc Quick Details Standard:JIS, AISI, ASTM, GB, DINDimensions:Dia 15-280mmGrade:400 ... as corrosion-resistant high-temperature bearing steel.Can be used to create high-quality tool , such as medical scalpels, scissors ... tretment → Finishing operation → Text → Finished productsNotes:1. According to national standard (GB)for our products, if not, supply according ...