碳鋼焊接鋼管:
,,,,,,,1.美標ERW高頻焊鋼管ASTM,A53,規格:1/2″-20″, -508mm
2.英標ERW高頻焊鋼管BS1387,規格:1/2″-6″, -
,,,,,,,3.汽車傳動軸用電焊鋼管GB9947-88,YB/T5209-2000
,,,,,,,4.皮帶機托輥用電焊鋼管
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