1, metal oil tank is easy to produce electric spark;
2. Metal oil tanks are generally welded, with welds, which are easily broken by impact;
4. All kinds of special-shaped spaces have caused insurmountable obstacles to the cost and machinability of metal forging fuel tanks;
5. From the perspective of energy saving and environmental protection, the metal fuel tank is relatively heavy, but the environmental protection is still relatively low.
Advantages of iron oil tank: unit volume is smaller than that of engineering plastic oil tank, no oil leakage, good ductility and anti-static. Iron sheet is a conductor, which can discharge static electricity conveniently.