Coal mine filter ElementUs HUAQING FILTRATION supply kinds of filter element used for Coal mine. Main products are:Pilot filter elementInto the liquid filter elementBottom valve filter elementBackwash filter elementHigh pressure oil filter elementHydraulic support filtersHydraulic pump station filterShearer filterUnload the valve filter cartridge Coal Mine Filter Series:Hydraulic control system filter filter (water spray filter, filter and bottom valve filter; small flow valve body filter);Coal mine high pressure filter station filter (large flow high pressure backwash filter);Coal mine high pressure backwash filter filter;Mine hydraulic pump station filter (high pressure into the liquid filter, water tank into the liquid filter, oil filter, oil return filter, high pressure filte...