Baja Kelas: Q195–Q345, S235JR, GR.BD, STK500 Standar: GB / T3091–2001, BS1387–1985, DIN EN 10025, EN10219, JIS G3444: 2004, ASTM A53 SCH40,–502 SCH40/BS502 Beungeut Finish: pra galvanized, threaded, stop kontak, engraved, dicét Diaméter luar (inci): 1/2 ''-4'' Thicknes ...
Maca deui