The chongqing energy filter is a source producer of oil filters, producing a variety of industrial oil filtration equipment, with products such as vacuum filters, transformer oil vacuum filters (two-stage vacuum filters), single-stage vacuum filters, lubricating oils \/ hydraulic oil vacuum filters, compact separation filters, centrifugal filters, multifunctional filters, sheet filters, and oil filters. The programme of providing clean oils free of charge on the basis of the condition of the oil, on a one-to-one basis。