... pipe:20,Q3458)Structure pipe:10,20,35,45,16Mn,Q345B9)Precision tube:St35,St37.4(10 ... #),St45(20#)St55(35#),Ck45(45#),St52(16Mn),CH8Ni9Ti35CrO10)Casing pipe:J55,N80EndBE and ... /T,L/C,D/A,atc.DeliveryWithin 5-45 days after receipt the advancementCertificationAPI5L,CE………………………………………………………………………………………………………About us: ... performance price ratio and best services. ASTM A106 Gr.B seamless steel pipes