... Type: WN, SO, SW, TH, BL We Zhejiang Chaowei New Material Co.,Ltd are profesional manufacturer of high quality Nickel Alloy flanges, used ... Marine, Petrochemical, Energy, Nuclear, Automotive, Military, and so on..ASME Welding Neck FlangeClass:- 150, 300, 600, 900, 1500, 3000Size:- 1/2 ... " - 60"Types: - Welding Neck (WN), Slip-on (SO), Blind (BL), Socket Weld (SW ...