... :DN15-100 Material:AISI304/AISI316L sanitary sight glass,stainless steel sight glass,sanitary clamp sight glass 1) Specification: ... Standard: DIN, SMS, 3A, ISO, IDF 3) Material: Stainless steel 304, 316L 4) Applications: Pharmacy, beer, food, petroleum, dairy ... . standard: DIN,SMS,ISO,3A.etc3. Material: Stainless Steel,Stainless Steel material:AISI304/304L,AISI316L4. Usage: use for industry field ...