Fold Down Bollard

Fold down bollards yog qhov ua tau zoo thiab hloov tau yooj yim rau kev tswj xyuas kev nkag mus rau tsheb thiab kev tswj chaw nres tsheb.
Cov bollards no yog tsim los kom yooj yim folded thaum xav tau kev nkag mus, thiab tsa rov qab los txwv cov tsheb nkag los ntawm qee qhov chaw. Lawv muaj kev sib xyaw zoo ntawm kev ruaj ntseg, yooj yim, thiab txuag chaw.