90D elbow Connection mode: Clamped, welded, threaded, flanged, etc Specification: 1"-4", DN25-DN100 Material quality: SUS304, SUS316L Polishing: Mirror polish(Ra0.5-0.8um), Semi-polished(Ra 1.6-3.2um) Standard: ISO, DIN, 3A, SMS, IDF Application: Pharmacy, beer, food, dairy, beverage, cosmetic, chemical indus