... direction pipe fitting-seamless,seamly seamless, buttweld fittings,elbow,tee,reducer,cap,bend,crossWe supply carbon steel ... and thread conection according to use requirementsCarbon steel elbow is used to be installed between two lengths ... welding , threaded , or socketed , so the carbon steel elbows are consist of butt weld,thread elbow.socket elbow and ... requried carbon steel astm L/R 45 degree Elbow