ASTM A53(F),A135-A,A53-A,A106-A,A179-C,A214-C,A192,A226,A315-B,A53-B,A106-B,A178-C,A210-A-1,
API5L GR.B，X42，X46，52，X56，X60，X65，X70 ,PSL1,PSL2,
API5CT J55,K55,N80,L80,P110.
Din1626,Din1629/3,Din1629/4,Din1626/4,Din17175
St33,St37,St37-2,St35.4,St35.8,St42, St42-2,St45-4,St45-8,St52,St52.4,
--Cold drawn from size 1/4"-5" OD pipe.
--Hot rolled from size 6"-16" OD pipe,also we can work from size 20"-24" as hot expand pipe.
Additionally,we have got carbon steel pipe for liquid use(ASTM A106/A53GR.B),steel pipe for casing(P-110,K55,N80 and so on),steel pipe for pipeline(API5L,GR.B,X42,X52,X60,X70),steel pipe for construction(high thickness of ST45,ST52),steel pipe for mechanical(high quality CK45).
