Honed Tube Oiled Surface Round Hydraulic Cylinder Tube

Honed Tube Oiled Surface Round Hydraulic Cylinder Tube Standard : GB/T3639, GB/T8713, EN10305-1:2002, EN10305-2:2002, ASTM A519-2006, ASTM A513-2007, GB/T1591-2008, GB/T17396-2009 Material: 20#, 45#, Q345B, Q345D, 25Mn, 27SiMn, E355 Hydraulic and pneumatic cylnder tube standard/size/tolerance   Working method Tube ID (mm) Length (m) Straightness (mm/m) Tolerance on ID Tolerance on WT ID Roughness (um) Cold Draw 40-400 ≤12m 0.2-0.5 　/ ±5% ≤1.6 Cold Rolled…