Tank trucks: also known as mobile fuel trucks, computer tax control fuel trucks, tank trucks, loading trucks, tank trucks, edible oil tank trucks, mainly used for the transportation and storage of petroleum derivatives (gasoline, diesel, crude oil, lubricating oil, coal tar and other oil products).According to different uses and use environments, there are various refueling or conveying functions, including oil suction, pumping, and various oil separation and oil dispensing functions. The special part of the oil truck is composed of tank, power take-off, drive shaft, gear oil pump, pipe network system and other components. The pipeline system is composed of oil pump, three-way four-position ball valve, two-way ball valve, filter screen, pipeline, etc.