... .9 ,ASME B16.5, SMS,3A,AS DIN,BS,etc 3.Connection mode Clamped, welded, threaded, flanged, etc 4 Polishing Mirror ... polish(Ra0.5-0.8um), Semi-polished(Ra 1.6-3.2um) 5.Size 1/2'-24"(seamless) 1/2'-48 ... "(welding) 6.Application Food industry such as dairy ,beer,,medical equipments, beverage ...