Iron and steel forgings的意思|示意

Typical materials include ductile iron castings or steel forgings. Most crankshafts require some form of heat treating including case hardening, nitriding and induction harden.

特殊的材料包括球墨铸铁和钢煅品，大部分机轴经过热处理，表面硬化、渗氮和感应淬火。

Handling casting business, cast iron, cast steel, Die-Alumminum, cast bronze, forgings, investment casting, sand casting and so on.

主要从事铸件出口业务，铸铁，铸铝，铸铜，锻造，精密铸造，砂型铸造。