| Hom | Hom Khoom | Tus lej qauv | Siv tau | MOQ |
| Dav Dav | Rooj Tswjhwm Saib Xyuas Kev Ua Haujlwm ntawm Elevator | SM-04-VSB SM-04-VSC SM-04-VSD | Rau STEP Elevator | 1 |
Lub vaj huam sib luag hu xov tooj sab nraud ntawm lub tshuab nqa SM-04-VSB SM-04-VSC SM-04-VSD rau lub tshuab nqa kauj ruam. Yog tias koj qhov project xav tau lwm hom qauv lossis hom uas tsis tau qhia ntawm no ... thov nug kom peb tuaj yeem muab cov ntaub ntawv ntawd sai sai.