Vim li cas thiaj xaiv PE-RT Yeeb Nkab

Lub teeb-lub teeb thiab yooj yim rau kev thauj mus los

Saj zawg zog thiab xav tau tsawg fittings

Yooj yim rau kev khiav lag luam

Lub peev xwm ntws yog 30 feem pua ​​​​siab dua cov yeeb nkab hlau

Eco-phooj ywg thiab tuaj yeem rov ua dua tshiab

Muab tsis muaj tshuaj lom auxiliaries hauv kev tsim cov yeeb nkab