... 0.5mm-140mm)API SPEC 5LCertificate No.:5L-0274PSL 1:A25\A\B\X42\X46\X52\X56\X60\ X65 \X70PSL ... STK400,STK490,STK500,STK540 ASTM A53 Gr. A,BASTM A106 Gr. A,B,C EN10208 Gr.L245NB,L290NB,L360NB,L415NBJIS ... JIS G3461 Gr.TB340,STB410,STB510 ASTM A210 Gr. A-1, CDIN2391-2 Gr. St35,St45,St52 ASTM A209 Gr ... 8,St45.8,17Mn4,19Mn5,15Mo3,13CrMo44,10CrMo910 APPLICATION:1,API SPCE 5L For the purpose of transportation of ...