“It is critically important that we accurately understand the relationship between foreign trade gro...
Straight seam welded pipe Straight seam welded pipe is made of steel plate or steel s...
Welded steel pipe is also called welded pipe , and it is made of steel plate or steel strip aft...
Spiral steel pipe is not stainless steel tube, not the alloy steel pipe, time is long, th...
Pipe welding generally refers to a set of professional skills used for the joining of pieces of...
Differences between spiral welded steel pipe and longitudinal welded pipe are many to be f...
China's large number of export scale steel in 2016, attracted the world's major countries trade ...
Spiral welded pipe production by submerged arc method is based on using tandem welding ...
Dear distinguished customers, colleagues and friends, Trickling summed up a magnifice...
1, clean Used solvent, emulsion clean steel appearance, to get to remove oil, grease, dust, smooth...
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