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GOST 30245 C235 Welded Steel Tube Square And Rectangular Steel Tube For Building
EN 10217-4 P215NL Welded ERW Electric Welded Non Alloy Steel Tubes For Low
EN 10217-2 P265GH Electric Welded Alloy Steel Tubes For Elevated Temperature
DIN 2460 L355 Alloy Steel Pipe Low Alloy Welded Steel Pipes For Water Pipelines
ASTM A1097 Welded Steel Tube Steel Casing Pipe Electric Fusion (Arc) Carbon
EN 10217-3 P275NL1 Welded Steel Tubes Alloy Fine Grain Steel Tubes For Pressure
BS6323-2 HFW2 Welded Steel Tube Hot Finished Welded Steel Tubes For General
BS 6323-6 CEW1 Cold Finished Electric Resistance Welded Steel Tube For
Electric Resistance Welded Steel Tube ERW Steel Tubes For Heavy Truck Exhaust
ASTM A513 DOM 1010 1020 1026 Mechanical Electric Resistance Welded Steel Pipe
Electric Resistance Welded Steel Tube , ERW / DOM 50mm Steel Tubing
JIS G3314 SA1D Welded Aluminized Steel Pipe Round Shape