Product Name: Stainless Steel Flange Sight Glass Material: Stainless Steel Connection: Welding Head Code: Round Shape: Equal Certification: FDA Trademark: LonGVA or OEM Transport Package: Carton, Plywood Case Specification: SMS, 3A, DIN Origin: Wenzhou, China HS Code: 7307230000 Product Description Name: Sanitary flange sight glass fitting1. Specification: 1" - 4", DN25 - DN100, applied to the stainless steel pipeline system2. Material quality: SUS304, SUS316L3. Standard: ISO, DIN, IDF, SMS4. Application: Pharmacy, beer, food, dairy, beverage, cosmetic, chemical industry