The material of the carbon is AISI1008~AISI1018, AISI1045, AISI1065~AISI1086, the products has different grades of G60, G100, G200,G500. According to CHINA GB308-2002 and USA AFMBA1989,it´s applied in all kinds of exactitude Machine, light-duty Bearin g, Casters, Bicycle parts, Hardware, Toy and ect .
