... , no pneumatic tire. Mounted on base frame and covered steel frame. Installed on worksite.2 Mobile type: ... mounted on 4 wheels base frame and covered steel frame.3 Single axle trailer type: mounted ... , tow-eye etc. (oil Purifier, oil filter, oil recycling, oil refine, reclamation, degassing, dehydration, insulation oil, transformer oil, lubrication oil, filtration, purification, low viscosity ...