Jiangsu Dahe Heavy Machine Co. , Ltd

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of a

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of a

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

Steel welded structure, the integrated treatment(VSR, heat treatment), to eliminate internal stress, have a good rigidity and stability. The use of ad

The frame is entirely welded with steel plates and treated to relive stress by tempering, so the precision is well maintained. Hydraulic topdrive, st