... Standard:ASTM,ANSI Typeapi 5l gr.b sch 40SizeSeamless Pipe: 1/2”~48”, DN15~DN1200, OD21 ... , SCH80, SCH160. XS,XXS and so on.StandardsANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ... The sizes: Pipe fittingType:elbows, reducers,tees, cross,capSize:Dn15-Dn1200 1/2”-48”Thickness;SCH10S,SCH20S ... female face; lapped joint; flat face(FF); threadedForged fittingsType:Elbow, Tee, Union, Cross, Coupling, Cap, Bushing, ...