... Steel5"ZS300MeterLength: R2, R3.Application: serves as walls of a well .Packing: bundle or bulk Material grade: J55, ... 5L PSL 1:A25\A\B\X42\X46\X52\X56\X60\ X65 \X70PSL 2:B\X42\X46\X52\X56\ ... ,EUE,NUE,PASTM A500 Gr. A,B,C,DASTM A53 Gr. A,B ASTM A106 Gr. A,B,CASTM A335 Gr. P1,P2, ... boilerHigh-pressureboiler pipe20G,A106,ST 45 GB5310-95ASTM A 106-99DIN17175-7914-630*2-80Temperature-resistantseamless steel ...