20 feet double

Internal: L5640*W6140*H2240mm. 

Fold: L5900*W2200*H2480mm

1: The service life is 20 years (the service life varies slightly due to different operating environments) 2: No warranty for low-end whole box

1: Wind resistance grade: 10 seismic resistance grade: 8 2: insulation performance: -35° to +45° 3: waterproof performance