material: stainless steel 304 & 316 etc. unit weight: 0.01kgs~50kgs Machining face treatment: polishing Hebei ... with high strength, good surface quality, novel design covering materials of stainless steel, carbon steel, alloy steel, grey iron and ... found in industries of engineering machinery, petroleum, marine, rail way, automobile and motorcycle, pump and valve, hardware, construction, etc, and ...