... Detailed Product Description coupling Hebei Long Pipe Industry Machinery Manufacturing Co., Ltd. specialized in producing steel pipe, power plant parts ... , bend, flange, pipe cap, threadolet,weldolet,sockolet,nipple,union,plug,coupling,bend, bearing tube parts, processing 10mm --- ... , flange cover,), according to customer drawings require the system to do Market Manager Sunny Tel: 0086-13831797200 Fax ...