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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...
2021-12-27
Operation technique of argon arc welding (2)

Argon arc is a kind of operation with both left and right hands at the same time, which is the same as drawing a circle with ...
2021-12-10
Operation technique of argon arc welding (1)

Argon arc is a kind of operation with both left and right hands at the same time, which is the same as drawing a circle with ...
2021-12-03
Influence of MAG welding shielding gas composition on welding process

Arc stability and arc initiation, about arc initiation, gas with low ionization potential is easy to ionize, arc generation a...
2021-11-26
The pipeline warehouse is being debugged

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...
2021-11-19
What is tank welding

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...
2021-11-12
How to weld high carbon steel?

shanghai qianshan piping technology company ( QSPT ) provides pipe spool fabrication line, cutting equipments, beveling equip...
2021-11-05
Take you to understand welding defects - welding slag inclusion

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