... steel pipes DIN 17175 seamless steel tube for elevated temperature Material: St35.8, St45.8, 17Mn4, 19Mn5, 15Mo3, 13CrMo44 DIN 2391 ... cold drawn seamless precision pipes Material: St35, St45, St52 DIN 2393 seamless steel pipes for structural ... -2, St52 Size: OD 16mm - OD 426mm OCTG PIPE, OIL PIPELINE: Material:J55,K55,N80,P110,L80/Gr.B X42,X46,X52 ...