... sand casting for marine and cement machinery parts with the material of carbon or low alloy steel ... bracket,rudder pintle, sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ZG20SiMn ... BS, NF, DIN, JIS, ISO etc. standard with carbon steel and alloy steel materials. These castings ... ,rudder pintle, sternpost, chain wheel, slag pot with the material of carbon steel,low alloy steel ...