... - sand casting process condition - raw casting OEM service boiler parts1) Materials: grey iron, ductile iron, malleable iron ... instrument, molding sand testing equipment, chemistry composition analysis room. Testing equipment (machine shop used): vernier caliper, depth ... Zone, Pulandian City, Dalian, China 116023 Office Address: Room 2308, Jinchen International Building, No. 570, Changjiang Road, ...