1: Major Produce Equipment and Inspection of Seamless Steel Pipe
2: Major Produce Equipment of ERW Pipe
3: Major Produce Equipment of SSAW Pipe
4: Major Produce Equipment of LSAW Pipe
5: Major Produce Equipment of Casing Tube
1: Major Produce Equipment and Inspection of Seamless Steel Pipe
2: Major Produce Equipment of ERW Pipe
3: Major Produce Equipment of SSAW Pipe
4: Major Produce Equipment of LSAW Pipe
5: Major Produce Equipment of Casing Tube