Tangshan Zwell Technology Co., Ltd.is a professsional manufacturing base of special steel, annual production capacity of 150 thousand ton, invested by Jianlong Group in Aprial of 2011.Main products included roll steel, mould steel, bear steel, gear steel, carbon steel, structural steel. Plastic & hot work mould steel, carbon steel and structural steel bars/flats/squares are commended at home and abroad, and imported heavily by customers in Germany, Turkey, India, South Korea, Singapore, etc.