Steel Grade: Q195–Q345,S235JR,GR.BD,STK500 Standard:GB/T3091–2001, BS1387–1985, DIN EN 10025, EN10219, JIS G3444: 2004, ASTM A53 SCH40/80/STD,BS–EN10255–2004 Superficies Conclusio: pre galvanized, liciatus, nervus, insculptus, pictus diametri exterioris (inch ):1/2''-4'' Crassitudines...
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