National Standard 1-2 Oil Refinery Unit

National standard 1-2 level oil refining unit: refining oil refined through de-gluing, de-acid, de-water, de-color, de-flavor and other processes. Tɔŋdu, a ye kɛnɛya dɔw ye kɛnɛya dɔw ye kɛnɛya dɔw ye kɛnɛya dɔw ye kɛnɛya dɔw ye kɛnɛya dɔw ye. 1-10 ton në aköl.