Dongying Haihe Machinery Co.,Ltd,located in Dongying city Shandong province China,is a professional manufacturer of investment castings,which has 242 workers and has spent 18 years on Lost-wax castings.We mainly produce stainless steel castings,carbon steel castings and alloy steel castings as well as the aluminium and bronze casting products.And both of sodium silicate and silica sol process have been adopted in our production..

We have greet maching ability and also can provide mirror polishing ,electronic polishing,plating and other surface treatment.

Our products include kinds of flanges,valves parts,pump parts,marine hardware,constrction hardware,auto parts and so on.