进气过滤器 Air inlet filter ·重载、过滤器，确保主机使用寿命。 ·延长油滤和润滑的使用寿命。 ·The air inlet filter of heavy load and hight efficiency can safeguard the service life of the mainframe. ·It can also lengthen the service of the oil filter, oil separator ,as well as lubricating oil.