... -treatment, pre-pressing, extraction, refining processing line. Business Scope 1. 50-3000 t/d processing line of oil seed pre-treatment and pre ... and batch refining;4. Oil-making technology and complete sets of equipment of maize germ, tea seeds and rice bran;5. Fractionation ... mills.. Edible oil pretreatment, pressing/extraction and refining complete set of processing line