... preheating control and pressure controlof hydraulic system. 5. This machine, adopted imported high quality silicomanganese material for main components, ... peanut, soybean, black seed, sunflower seed, flax, vegetable seed, castor seed, cotton seed, rape seed, camellia seed, walnut, etc. ... the need of production. Operate processing of oil press machine for edible oil/ruiyuan manufacture 1. Stir-firing ...