... large-scale sand casting for marine and cement machinery parts with the material of carbon or low alloy steel ... sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ZG20SiMn, ZG35SiMn, ZG35SiMnMo, ZG35CrMo, ZG42CrMo, ZG40Cr ... large cement equipment steel castings, marine casting products and so on, using ASTM, BS, NF, DIN, JIS, ISO etc. standard with carbon steel and alloy steel ...