Detailed Product Description coupling Hebei Long Pipe Industry Machinery Manufacturing Co., Ltd. specialized in ... , bend, flange, pipe cap, threadolet,weldolet,sockolet,nipple,union,plug,coupling,bend, bearing tube parts, processing 10mm --- 426mm diameter and a ... variety of custom-made greater curvature. U-type bend Z-bend S-bend and so on. Flange (high ...