... :DN15~DN150 2.material:SS304,SS306 3.medium:gas, water,oil,some corrosive li Detailed Product Descriptionstainless steel 180 degree ... :DN15~DN150 2.material:SS304,SS306 3.medium:gas, water,oil,some corrosive liquistainless steel 180 degree welded elbowspecifications:1 ... .size:DN15~DN1502.matarial:SS304,SS306,SS316L3.medium:water,gas,oil,some corrosive liquid4.standards:SMS,ISO,IDF, ...