shipbuilding casting pipe 1,Large-scaled cast steel items and cast iron items (unit weight < 60 tons); With ... as bellows:1, A variety of stainless steel castings, middle-, low-alloy steel castings, normal carbon steel castings, graphite cast iron castings, wearable ... castings and precision castings;2,A variety of steel for steel ingots3,Large-scaled cast steel items and cast iron items (unit weight ...