拖拉机、汽车曲轴箱中换F的脏机油通常称为废机油。如果扔掉既影响环境卫生，又造成上壤板结，不利环境保护。在日常生活中，人们稍加注意，就可以发现废机油实际上大有用处。用作手推车、单轮车等的轴承、轴套的润滑油。徐在闲置的铁器农具表面，有防锈、防腐蚀的作用。涂在压 Dirty oil in tractors, car crank cases for F is often called waste oil. If it is thrown away, it will not only affect the sanitation of the environment, but also result in the compaction of the soil and adverse environmental protection. In everyday life, people pay close attention to, you can find the waste oil actually useful. Used as a trolley, unicycles and other bearings, bushings lubricants. Xu idle iron tools in the surface, there is rust, anti-corrosion effect. Tu pressure