... material of carbon or low alloy steel. Product Name: riding wheel/Marine rudder/shaft/ sternpost system, such as rudder blade, ... bridge,gear,integrated chassis,steel bracket,rudder pintle, sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ... ,gear,integrated chassis,steel bracket,rudder pintle, sternpost, chain wheel, slag pot with the material of carbon steel,low alloy ...