... of fine material, preventive to scrape on cylinder body, low oil consumption, avoidance to carbon gathering.TIE RODTierods machined and ... parallelity, leads to more smooth and stale running of air compressor, and lower consumption of lubricting oil.CRANKParts wear abrasion ... with fan by iron castingleads to perfect flywheel result, low noise, stable running.BEARINGBearing of high performance and long ...