1. Long side tube: rectangular tube 30X20X2;
2. Short side tube: rectangular tube 30X20X2;3. Supporting feet: torque tube 40X25X2;
4. Wheel support plate: 4mm steel plate;
5, base mesh: metal mesh 5mm;
6. Casters: PA wheel (two turns and two sets)
The vehicle can be customized according to customer requirements;