... grade oil of national standards,blend oil,special fragrance oil and faint scent. (1)Crude Oil Refinery,edible oil refinery plant,cooking oil ... tank is sued for deodotization tank4. The conducting oil furnance provide the heating for production5. The vacuum pump ... ,decolorizing tank,deodorizing vessel,oil separating tank,clay tank,filter,Alkali dissolving tank,decolorizing oil tank,oil pump,etc. If you ...