Astm A193 B8t Stud / A194 8t Nut Shaoxing Yongan High Pressure Fastener Co., Ltd. Base Info Trademark:YASpecification:ASTMOrigin:ChinaHS Code:73181900 Description Pre:Flanges Socket Welding (FROM DN10mm TO DN600mm) Next:Hexagon Bushing-Brass Fitting (HF5036)