steel machined part 1.material: Q235,20#steel,S/S 2. ... , BS, DIN, EN, ISO Operation: green sand casting and resin sand casting Surface finish: sand blasting, oiled, zinc, nickel, chrome ... its fittings, grating, frame, manhole covers, pump parts, handwheel, valve, flange, bollard, pilingaccessories, counterweight iron, construction machinery parts and ... sixty new products each year. steel machined part