ASTM A513 Type 1 ERW Hollows for DOM Tubes ASTM A795 UL/FM Fire Sprinkler Pipes
RSTEEL SA is an industrial company specialized in manufacturing longitudinally welded steel tubes.
DMCTECH is a leading ERW tube mill line manufacturing company that was founded in 2000. The company specializes in design, development and manufacturing of tube mill lines with advanced welded steel
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