one side is straight pipe. DN:15-100mm, W: 0.8-1.2mm , standard: DIN, JIS, material: SUS304,304L,316,316L. press.:1.6Mpa Stainless steel/galvanization carbon steel 90 elbow-press fitting 1. Material: 304,304L,316, and 316L.2. Connection: double press on the two sides of the raised ring with the sealing gasket put in the raised ring.3. Standard: DIN EN 10312 DVGW W 534.,same with mapress fitting ...