QDY bridge foundry crane with hook is mainly used at the place where the molten metal is liftedThe working class of the complete machine is A7,and thermalprotective coating is added at the bottom of the main girderThe assembling and test of the crane conform to the document No.ZJBT[2007]375 which was issued by General Administration of Quality Supervision,Inspection and Quarantine of the PeopleS Republic of ChinaThe place where molten nonmetal material and red-hot solid metal is lifted also can refer to this document
