1. weld, seamless, forged elbow 2. pipe fitting 3. carbon, stainless steel, alloy steel ... , SCH30, SCH40, SCH60, SCH80, SCH160, ETC Bending RadiusR=1.5D-10D Bending Angle45°, 90° , 180° Standard ASMEANSI B16.9 ... reducers, and caps from D25mm to D820mm 4, Pipe fitting made of steel plate from D630mm to D3320mm ... 5, Socket welding pipe fittings from D3mm to D159mm 6, High-medium ...