... PC 2.material:ASTM A234WPB 3.good quality and reasonable price 90 degree tube elbow Materialcarbon steel, stainless steel, alloy steelTechniquewelded and ... , 2616, and 2617Min Order QuantityAccording to customer's requirementTypes45 and 90° LR/SR elbows, 180° returns, straight, reducing tees, ... installation and otherCertificatesISO-9001/2000Special design available as requirement 90 degree tube elbow