... T92 4.Usage:boilers, Features: 1) Executive standard: contract required, ASTM A213, A199 A335 (ASME SA213, SA199 SA335)2) Specification range ... T5, T11, T22, T91 (P5, P11, P22, P91) Product name: ASTM A213 seamless alloy steel pipePlace of Origin: China Grade:T2 ... as customers' requiredTolerance: meet the standard.Standard: ST52/ST52.4/ASTM A213,ASME SA213Payment: T/T and L/C or negotiationPackaging ...