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2022-04-03
features of welding thermal process

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...
2022-04-03
features of welding thermal process

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...
2022-03-25
Analysis of the types and basic characteristics of welding cracks

Analysis of the types and basic characteristics of welding cracks...
2022-03-18
Domestic project delivery

Domestic project delivery...
2022-03-11
Analysis and treatment of welding defects of welding robot

The robot welding is argon - rich mixed gas welding, welding defects generally occur in the process of welding, welding devia...
2022-03-04
Welding construction skills of large storage tanks

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...
2022-02-18
Pre-heating, post-heat and post-heat treatment should not be overlooked in the welding process!

Pre-heating, post-heat and post-heat treatment should not be overlooked in the welding process!...
2022-01-14
Selection of ordinary alloy structural steel

Selection of ordinary alloy structural steel...
2022-01-07
Ultrasonic detection of transverse crack

Transverse crack has great harm, compared with other defects, it is more difficult to detect, easy to miss, which is the key ...
2021-12-31
How do you make those fish-scale welds that are so beautiful?

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...