LINE PIPE ERW/HFW CARBON STEEL LONGITUDINAL WELDED API 5L GR.B/X42 PSL1/AS/NZS 1163/C350L0/ASTM A53B,Website:http://www.huilitongpipe.com,LONG WELDED ...
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Large Diameter SPIRALLY SSAW Welded Steel Pipes Din 30670 POLYETHYLENE COATING WATER LINE PIPES,Large Diameter Spiral-welded Steel Pipe
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