Lus piav qhia luv luv:

1. Nws yog muab nrog qhov ntsuas kub tsis siv neeg qhov system thiab phau ntawv ignite.

2. Nws txais cov khoom tshwj xeeb thermal insulating kom tsis txhob tawm sab nraud ntawm tshav kub, ua kom ceev ceev ntawm qhov kub thiab txias, thiab txuag roj.

3. Lub nruas txais kev ua haujlwm siab tsis kawg hloov pauv-ceev, thiab nws tso cov tshuaj yej tawm sai thiab zoo, khiav tsis tu ncua.

4. Lub tswb yog teem rau lub sijhawm kho