... / sternpost system, such as rudder blade, quill shaft,anvil stand,support roller,cast steel joints for bridge,gear,integrated chassis,steel ... . Its main products include rudder blade, quill shaft,anvil stand,support roller,cast steel joints for bridge,gear,integrated chassis,steel ... steel and so on.More than 20 years experience, we now have one set of 8 tons of electirc arc furnace ...