* Kev tsim kho ruaj khov
* Yooj yim txiav* Corrosion-tiv taus
* Txiav ceev thiab meej
* Muaj rau qhov sib txawv me me txiav ntawm slab
* Zoo meej nto ntawm slabs
* Relaible thiab nrog cov nqi khiav haujlwm tsawg
* Kev siv dej tsawg dua thiab tsis tshua muaj suab nrov
Yuav tsum muaj:
* Square thaiv
* Gang pom loj thaiv kom zoo cemented ntawm trolley
* Muaj dej raws li lub coolant.
Yuav tsum muaj:
* Square thaiv
* Gang pom loj thaiv kom zoo cemented ntawm trolley
* Muaj dej raws li lub coolant.

















