h8 honed tube for hydraulic cylinder 1,OD:12--650mm,WT:1--100MM ... Order is 10 ton 3.fast delivery time h8 honed tube for hydraulic cylinder TypeCarbon Seamless Steel PipePipe Size1/2'--48'(DN15 ... STPT49,STS49ApplicationLow and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, ...