According to the purpose and pipe material, the commonly used connection methods of construction s...
Features of submerged arc steel pipe: Submerged arc steel pipe is a kind of ordinary straight ...
(1) The warehouse should be selected according to geographical conditions. Generally, an ordinary cl...
Due to the relatively large individual mass of spiral welded steel pipes, they must be stacked outdo...
The difference between hot working and cold working: hot rolling is hot working, and cold drawing is...
The role of pickling passivation in the process of prefabrication, welding, testing, and heat treatm...
1. Compression type: Insert the pipe into the nozzle of the pipe fitting, fasten it with a nut, and ...
Cooling form of large diameter steel pipe : Large-diameter steel pipes are steel pipes with an ...
After the oil casing adopts this heat treatment method, it can effectively improve the impact to...
In real life, most people think that stainless steel pipe is non-magnetic, and use magnets to id...
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