Seamless steel pipe Min. Order: 1 Tons Price: US $1-700/ Ton ... SEAMLESS STEEL PIPEStandardAPI5L,A106,A53,A335,A333,DIN1629,DIN2448,NFA49,GOST8731,JISG3454GradeGR.B,X42,X56,P11, P22,ST37,ST45.8,ST52,S235JR,S355JR ... Gas ,Construction/Structural, Chemical, Electricpower,Transmission pipeline, Boiler pipe, heat exchanger pipe and Other Fields. 8000tons/month output astm 106,astm a53 Seamless Steel Pipe