... two lubrication styles: Fat grease (below 0.6kgf/cm2), oil splash grease (0.7-0.9kgf/cm2), which makes ... aligning bearing.10. Widely used in many fields, especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, ... oxygen generation, etc. 11.Oil tank: after milling they are all polished by digital grinding ...