Tung oil,chinese wood oil 99% Cas:8001-20-5 clear, transparent liquid Tung Oil is pressed from the nuts of Tung tree is known also as China wood oil and nut oil. Major producing countries are mainland China and South America (Argentina and Paraguay), United States and Africa . Tung tree farms in the southern U. S. and Argentina now supply tung oil, formerly available only from China. The oil is ...