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Bahan: 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 ) Bentuk : Conical,…