... steel,auto steel, tool steel, --Standard:AISI,ASTM,JIP,GBT Special Steel --Carbon structural steels: The carbon steel (i.e. high ... load machine tool, etc. -- Bear steels High carbon and chromium bearing steel is widely applied in the manufacture of pin roller ... , America DELPHI and Taiwan Tung Pei, etc. The high-grade bearing steel self-developed by the company has won great acclaim ...