Dec. 18^th, 2011 witnessed the successful commissioning of Ф180 OCTG line in Hengyang Steel Tube Co., Ltd.

CISDI Engineering Co., Ltd. provided the engineering, CISDI Industrial Furnace supplied the rotary hearth furnace on EPC basis, CISDI Electric Technology Co., Ltd. takes care of EIC design and equipment supply. Leading cone type piercer, 6-stand retained-mandrel PQF plus 3-stand extractor, 14- machine micro-tension reducer is applied in hot rolling line. The rotary hearth furnace shall be heated by efficiency air-gas regenerative burners and conventional burners.