قطب های فولادی لوله ای
مادی: Hot Roll Steel Q235, Q345, Q420, Q460, ASTM A527 A36, GR50, GR65, ST-37, ST-44, ST-52, S355JR, S355J2G3, SS41, SS50, SS55 and others equivalent steel material Wall thickness :2~30mm Once Forming :16m Once forming without joint Voltage Grade : 10~500KV (10kv, 13.8kv,33kv, 35kv, 66kv, 110kv,132kv, 220kv, 230kv, 330kv, 500KV or Others ) شکل : Conical,…