Dongying Haihe Machinery Co., Ltd. established in 1988, is a professional manufacturer of investment castings. We mainly produce stainless steel castings, carbon steel castings and alloy steel castings as well as the aluminium and bronze castings producuts.
The surface treatment we can do is polishing, plating, sand blasting, shot blasting and so on.

Heat treatment: anneal, temper, quenching, hardening and tempering, solution treatment and so on. The advanced equipment is CNC turning centers, CNC miling machine, CNC machining lathes and machining centre, ect. The monthly productivity is 200 tons.