... 4.Simple maintenance... 6 YL series high quality aumatic oil expeller with competitive price features 1..Cast iron machine base; ... adjusted once the machine stop running;5. Superior grade oil cake;6. Compact structure, stable function, simple maintenance ... Hemp, Hazelnut, Peanut, Cotton, Hemp, Arrow-root, Poppy, Grape, Rapeseed, Linseed, Cumin, Mustard, Poppy, Nettle, Bitter almond, Kernel,Tomato, ...