Holtop amakhala wogulitsa ku Beijing Olympic 2008 ataunikiridwa mosamalitsa ndi gulu la oweruza pamakina ake obwezeretsanso mpweya wabwino. Ulemu uwu umawala Holtop kuchokera kwa omwe akupikisana nawo padziko lonse lapansi.
Timapaka utoto wa Olimpiki Ndi Ma Heat Recovery Ventilation Systems
