About Product:The manual force drives The gear, which is suitable for conveying all kinds of oil, to The as heavy oil, diesel oil, lubricating oil, and gear can cooper transport low liquid inside, to The as gasoline, Benzene, etc. At the same time, it can be applied to those containing hard particles or fibers, and it is suitable for all kinds of viscosity, with good self - absorbability, And it is not necessary to inject the liquid before each pump.