... system, such as rudder blade, quill shaft,anvil stand,support roller,cast steel joints for bridge,gear,integrated chassis ... bracket,rudder pintle, sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ZG20SiMn, ZG35SiMn, ZG35SiMnMo, ZG35CrMo, ZG42CrMo ... Its main products include rudder blade, quill shaft,anvil stand,support roller,cast steel joints for bridge,gear,integrated ...