... ASTM, BS,ISO 3.Quantity: It can be nego Investment-Casting 1) Materials: grey iron, ductile iron according to customer ... BS, DIN, EN, ISO 3) Operation: green sand casting and resin sand casting 4) Surface finishes: sand blasting, oiled, zinc, nickel ... 7) Precision machining: CNC lathes, milling, drilling, planning, grinding machines and test facility 8) Chemical composition controlled by spectrometer 9 ...