We are the major Sanitary Stainless Steel Products manufacturer in China with 15 years+ history. Now our products have been widely used in Europe,USA,Asia,South Africa. Following is the spec of Elbow: Material:304,304L,316,316L Standard:DIN,ISO,SMS,INCH,3A. Any kind of OEM Size:DN25~DN125, 1'~4' Finishing:Mill, 240~400grits Polishing,Electro-Polishing If you have any interests or questions on our products,pls do not hesitate to inform us. Thanks