http://www.ztvalves.com/sanitary-fitting/steel. According to the connection method, it can be divided into welded, clamped and threaded connection. Its main features are safety, neatness and non-toxicity. It is generally used in pharmaceutical, food and other industries with high requirements for sanitary grade. Product description: Product name:3A DIN SMS ISO stainless steel sanitary fitting elbow tee union Type:Stainless Steel Sanitary Fitting Size:1/2"-8" Material: SS304, SS304L,SS316,SS316L Shape: Equal, Reducing Surface treatment: mirr