... , ASTM, BS,ISO 3.Quantity: It can be nego Investment-Casting 1) Materials: grey iron, ductile iron according to customer's ... , BS, DIN, EN, ISO 3) Operation: green sand casting and resin sand casting 4) Surface finishes: sand blasting, oiled, zinc, nickel, chrome ... heat treatment 6) Product weight: 0.5 to 300kg 7) Precision machining: CNC lathes, milling, drilling, planning, grinding machines and test ...