h8 honed tube for hydraulic cylinder 1,OD:12--650mm,WT:1--100MM 2, ... is 10 ton 3.fast delivery time h8 honed tube for hydraulic cylinder TypeCarbon Seamless Steel PipePipe Size1/2'--48'(DN15 ... ,JIS G3455,JIS G3456,JIS G3457,JIS G3461MaterialQ235, 20#, Q345A53B, A106B, API 5L B,X42,X46,X52,X60, X65ST37.0,ST35 ...