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· The price of J55 oil pipe keeps rising [2018-12-25 HITS:5]
The price of J55 oil pipe keeps rising [READ]
· Welded steel pipe prices have shown a more obvious rebound [2018-12-20 HITS:3]
Welded steel pipe prices have shown a more obvious rebound [READ]
· Does the microstructure of seamless steel pipe change after deformation? [2018-12-18 HITS:3]
Does the microstructure of seamless steel pipe change after deformation? [READ]
· How to weld spiral steel pipe [2018-12-13 HITS:4]
How to weld spiral steel pipe [READ]
· Overall trend of oil pipe price in december [2018-12-11 HITS:3]
Overall trend of oil pipe price in december [READ]
· Application of welded steel pipe [2018-12-06 HITS:6]
Application of welded steel pipe [READ]