... pipes DIN 17175 seamless steel tube for elevated temperature Material: St35.8, St45.8, 17Mn4, 19Mn5, ... , 13CrMo44 DIN 2391 cold drawn seamless precision pipes Material: St35, St45, St52 DIN 2393 seamless steel ... pipes for structural purpose Material: Rst34-2, Rst37-2, RSt44-2, St52 ... Size: OD 16mm - OD 426mm OCTG PIPE, OIL PIPELINE: Material:J55,K55,N80,P110,L80/Gr.B X42 ...