1. Spiral steel pipes with fixed lengths can not be bundled. 2. If the two ends of the spiral...
The ability of metal materials to resist the indentation of the surface of hard objects is called ha...
To prolong the service life of the spiral steel pipe , the first thing you should think about is ...
1) Work before molding The raw materials are strip coil, welding wire, and flux. They must undergo...
Thick-walled steel pipes refer to steel pipes whose outer diameter and wall thickness ratio is l...
1. Preliminary rounding stage: the fan-shaped blocks are opened until all the fan-shaped blocks are ...
(1) When the cooling is completed, that is, when the temperatures of the surface layer and the core ...
Socket welding steel flange is suitable for small diameter, high pressure, and high-temperature ...
1. Stainless steel stamping elbow will not produce corrosion, pitting, rust, or wear. Stainless stee...
How accurately measuring the length of the spiral steel pipe is very important for the spiral s...
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