casting flange parts 1) Take photos for every step. 2) Produce according ... Various high quality CNC machining cast iron/steel/copper astm flange parts---On promotion OEM castingAccording to the customer’s drawing ... , ductile iron, steel, stainless steel, carbon steel, alloyProcess: sand casting, investment casting, die casting and so onStandard: GB, ASTM, DIN, JISWeight range: 5g-20tonCasting ...