Nta:
1. Cov qauv yooj yim: Cov qauv ntawm phau ntawv qhia kev tsheb nqaj hlau hom nqa nqa nqa nqa nqa nqa tau yooj yim, yooj yim rau kev tswj hwm thiab tu.
2. Muaj kev nyab xeeb thiab txhim khu kev qha: Daim ntawv qhia kev tsheb nqaj hlau hom nqa nqa nqa nqa nqa nqa nqa txoj kev tsav hydraulic, uas ua kom cov txheej txheem nqa du thiab kev nyab xeeb thiab txhim khu kev qha.
3. Kev khiav hauj lwm du: Thaum lub sij hawm nqa cov txheej txheem ntawm kev qhia rail hom cargo of elevator, lub platform yuav tsum muaj zog sib npaug, khiav smoothly, thiab cov khoom tsis yooj yim puas.
4. Saj zawg zog thiab yooj yim: Lub lifting qhov siab thiab platform loj ntawm phau ntawv qhia rail hom cargo elevator tuaj yeem kho raws li cov neeg siv khoom xav tau, tsim nyog rau kev thauj mus los ntsug ntawm cov khoom sib txawv.
