h8 honed tube for hydraulic cylinder 1,OD:12--650mm,WT:1--100MM ... ton 3.fast delivery time h8 honed tube for hydraulic cylinder TypeCarbon Seamless Steel PipePipe Size1/2'--48'(DN15 ... , 12.0m. Random length: 5-12mStandardASTM A53,A106,API 5L,ASME B36.10M-1996DIN1626,DIN1629,DIN17175,DIN 2448JIS G3452 ... G3456,JIS G3457,JIS G3461MaterialQ235, 20#, Q345A53B, A106B, API 5L B,X42,X46,X52,X60, X65ST37.0,ST35.8 ...