Shijiazhuang Teneng Electrical & Mechanical Equipment Co., Ltd. is the professional manufacturer of the welded steel pipe production line, cold roll forming line, slitting line, cut-to-length line and the related auxiliary equipment. Teneng company is the modern enterprise which capable of research and development, production and sales. Teneng is a council member of China Roll Forming Association, a president member of Hebei Steel Tube Trade Association.