Iwọn Irin:Q195–Q345,S235JR,S275JR,S355JR,GR.BD, STK500 Standard:GB/T3091–2001,BS1387–1985,DIN EN10025,EN10219,JIS G30219,JIS G30219,ASTK500 SCH40/80/STD, BS-EN10255-2004 Ipari Ipari: gbona dipped galvanized, elekitirogi galvanized, dudu, ya, asapo, iho, engraved. Iwọn ita (...
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