The grade one refining equipment has the effect of dehydration, dephosphorization, deacidification, decolorization and deodorization, suitable for a variety of plant and animal crude oil, can meet the national standard of primary oil and secondary oil standards. In the video, the refining equipment is placed in the field, consisting of four refining tanks, three plate frame oil filters and power cabinets and so on. The gross oil reacts through the refining tank to remove harmful substances, and uses the plate frame oil filter several times to ensure that the impurities are 100% eliminated.