ASTM A403 Standard Specification forWrought Austenitic Stainless Steel Piping Fittings
ASTM A403/A403M-Standard Specification forWrought Austenitic Stainless Steel Piping Fittings
JIS B 2238-1998 General rules for steel pipe flanges
JIS B 2238-1998 General rules for steel pipe flanges
ASTM A182A182M Stainless Steel Pipe Flanges,Forged Fittings
ASTMA182A182M-19StandardSpecificationforForgedorRolledAlloyandStainles.