... 90 degree tube elbow Materialcarbon steel, stainless steel, alloy steelTechniquewelded and hot-expandedConnectionweldingHead codebevel the endSize1/2 to 80-inch/ ... ,API5L,DIN,JIS,BS,GBwe can also produce according to drawingSpecification standardsANSI B16.9, ANSI B16.28, JIS ... B2311, DIN 2605, 2615, 2616, and 2617Min Order QuantityAccording to customer's requirementTypes45 and 90° LR/SR elbows, 180° ...