Product Name: Stainless Steel Sight Glass Certification: ISO9001:2008 Competitive price, High quality, On-time delivery Santiary Stainless Steel Sight Glass Specification: 1"-6", DN25-DN150 Material: SUS304 SUS316Standard: DIN, ISO,SMSConnection: welded ,quickApplication: Beer, Milk, Beverage, PharmacyPackage: carton or wooden boxExternal processing: can be requested by the user to the drawing. ...