suit for extracting vegetable oils, rape seed, peanuts, sesame seed, cotton seed,soya beans,coconuts, tea seed, sunflower seed, the machine ... from such oil-bearing materials, as rapeseed, peanuts, sesame seed, cotton seed, soyabeans, coconuts, tea seeds, palm kernel, sunflower seeds, even ... -grade alloy steel through hardening treatment. Screw Oil Expeller,oil press, oil milling machine, oil mill