... ,BS,NF,JIS,ISO 4.Sand Casting 3.ISO9001:2000 Ductile iron sand casting, Steel casting, Sand casting:1.We are ... casting, machining, Surface treatment, Surface finish3.We have a strict quality control system4.We can give the most competitive price to ... after heat treatment(3)Dimensions testing after maching(4)drawings>>mould making>>raw casting>>sandblasting>>rough machining or finish machining>>surface ...