Tsheb nrau av

Paver

(Hes zog)

SD 24
SD 13
SD 16
SD 17
SD 20
SIB 388
WZ30-25

(Technology upgrade)

(Qhov kev ua haujlwm)

Paver cov khoom pom

Nrhiav

Clear Txhua

TSEV KAWM NTAWV

QHOV TSEEB TRACK HOM

HOM

LARGE-SIZED PAVER SIJ HAWM PAVER MEDIUM-SIZED PAVER

Qauv

Chav tsev:

US

/

Metric

Cov cuab yeej thiab cov kws tshaj lij pab thaum txhua qhov tig