1.Good sealing.Will not leak
2.High compressive strength.reasonable product structure sress tested over 200 times for immutability
3.Small footprint
4.Easy to install Ready to use after installation
5.Long service life, can be used for 70 years
6.Low cost.The total cost is 65% of the concrete structure
7.Easy to use
1.Front and rear lights
2.4G Bluetooth remote control
3.double door
4.one-button start
5.Independent swing
6.Power display
7.Four-wheel suspension
8.convenient lever
9.early education,English Story,Children's Song /USB,MP3
