碳鋼焊接鋼管
碳鋼焊接鋼管: 1.美標(biāo)ERW高頻焊鋼管ASTM A53,規(guī)格:1/2″-20″,21.3-508mm 2.英標(biāo)ERW高頻焊鋼管BS1387,規(guī)格:1/2″-6″,21.3-168.3mm 3.汽車傳動(dòng)軸用電焊鋼管GB9947-88 YB/T5209-2000 4.皮帶機(jī)托輥用電焊鋼管
鋼管知識(shí):腳手架管分類|腳手架管特點(diǎn)|腳手架管