20 Meter Cubic fuel tank truck or refueller or fuel tanker is mainly suitable for transportation and storage of petroleum derivatives which include gasoline, diesel oil, crude oil, lubrication oil coal tar and more. It comes with many functions like oil refueling and carrying according to different operating environments. Oil tank truck is made of tank, power take-off device, transmission shaft, gear oil pump, pipe network system, etc. and five components oil pump, two way ball valve, tee and four way ball valve, oil screen and pipeline.