... ,rudder pintle, sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ZG20SiMn, ZG35SiMn, ZG35SiMnMo, ZG35CrMo, ZG42CrMo, ZG40Cr, ZG34CrNiMo, ZG40Mn , ZG50Mn ... alloy steel and so on.More than 20 years experience, we now have one set of 8 tons of electirc arc furnace ... casting 28T) and two 20 tons high-frequency furnace.The annual capacity is 20000 tons and the maximum casting ...