1. Mainly use tools such as wire brushes to grind the surface of the steel. The cleaning and preheat...
Metallurgical Properties of Fabrication Materials The raw material of the spiral welded pipe i...
The repair requirements for the shortcomings of spiral steel pipe welds are as follows: The mi...
Before the steel is hot rolled, heating the raw material not only improves the mental plasticity, re...
Spiral steel pipe is made of strip steel through the coiling machine, bending in a spiral direct...
Spiral steel pipe is made of strip steel passing through a coiling machine, bending in a spiral ...
(1) During the extrusion process, the temperature of the inner lining of the spiral steel pipe i...
What is the difference between fine polishing and rough polishing of stainless steel pipe fitt...
The anti-corrosion of plastic- coated steel pipes developed from the earliest inner and outer pol...
Anti-corrosion spiral steel pipe is made of low-carbon structural steel rolled into tube blanks ...
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