1. Before processing all steel pipes, the steel plate on the inner wall of the large-diameter steel ...
According to different production methods, it can be divided into hot rolled tubes, cold rolled tube...
Most merchants did not use the straight seam steel pipe soon after purchasing it. So is there an...
1. The spiral steel pipe packaging should be able to avoid looseness and damage during normal handli...
1. The premise must be polished The galvanized layer of the weld must be polished away, otherwise ...
At present, the welding methods of stainless steel welded pipes used in the industry mainly include ...
1. The uneven thickness of the spiral wall is caused by the uneven rolling centerline of the piercin...
1. Hot push expansion method: push expansion equipment is simple, low cost, convenient maintenance, ...
Most merchants did not use the straight seam steel pipe soon after purchasing it. So is there anyt...
1. Under the condition of not affecting the welding of the nozzle, the reserved length of the epoxy ...
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