The cross beam is exclusive used in lifting the molten steel ladle, is mainly used with the hook assembly or the crane, the bearing in the wheel and the hook nuts are all chosen the import or the national famous brands, even the wheels are all chosen from the fixed providers for Baosteel group. The plate hook was designed with oilless copper or steel bushing above its contact surface, each hook should make the static tensile test which is follow the national standard, also shows the test report from the national laboratory.