ductile iron casting with 100%pressure test, certified by ISO, TUV-PED, BV We manufacture customized products according to individual client's requirement.1, Lose Wax Process(soluble glass): wax injection, wax welding, dipping, sand-coating, shell-making, dewaxing, cleaning, pouring, cutting.2, Materials: carbon steel, alloy steel, cast iron, cast steel, pig iron, grey iron, ductile cast iron and ...