Plastic storage tank for storing a liquid or gas general plastic sealed container. Plastic tank is essential oil, chemical industry, grain and oil, food, fire protection, traffic, metallurgy, national defense, critical infrastructure, our economic life always cannot do without plastic tank greatly small plastic tank, an important role which plays in the national economic development is irreplaceable. Plastic tank is. Plastic tank is a special equipment for storing various liquid raw materials and finished products, for many enterprises no storage tank can not be normal production, especially the storage state strategic material reserves all cannot do without the capacity of various types and. The oil storage facilities in China to aboveground storage tanks based, with metal and plastic structure mostly, so the plastic tank in all walks of life plays an irreplaceable role.