Tubes for Hydraulic Cylinders
--Materials :ASTM519/1026/1035/1045 seamless steel pipe
--Inner Surface roughness is less than 0.4μm
--The Low-pressure Hydraulic cylinder can be used 20# steel pipe
--The High-pressure Hydraulic cylinder can be used 45# steel pipe
--The commonly used materials are 20#,35#,and 45# seamless steel pipe