crane transport carriage 1.material:steel 2.CE,SGS,ISO9001 3.Material transfer equipment 4. ... battery powered railway material handling crane transport carriage steel structure is used box beam structure.2.All of the parts of dynamoelectric material ... .Production process chart 1.Production drawing 2.Making cutting line3.Steel plate batching4.Piece together5.Single veed weld6.Wheels debugging7.Paiting8 ...