wire casing pipe oxygen blowing pipe | ||
wire casing pipe and oxygen blowing pipe for plain carbon steel
electric-welded pipe and oxygen blowing pipe for steelmaking | ||
mark:diameter×steel grade GB3640-88 | ||
13(1/2)12.7mm | 51(2)50.8mm | 38(11/2)38.10mm |
19(3/4)19.05mm | 16(5/8)15.88mm | 64(21/2)63.5mm |
32(11/4)31.75mm | 25(1)25.4mm | |
KBG casing pipe(checkered zinc or white zinc) | ||
16×1.0-1.5 | 25×1.0-1.5 | 20×1.0-1.5 |
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