(1) iav fiber ntau vuas feem ntau yog siv rau lub ru tsev nrog txoj kab nqes ntawm 20 ~ 80 degrees.

(2) Kev tsim kho ntawm lub hauv paus cement mortar leveling txheej

Kev nyab xeeb yuav tsum muaj rau kev tsim kho pobzeb asphalt

(1) Cov neeg ua haujlwm tsim kho nkag mus rau qhov chaw tsim kho yuav tsum hnav cov kaus mom hlau tiv thaiv.

(2) Nws yog txwv tsis pub ua haujlwm tom qab haus dej, thiab cov neeg ua haujlwm kub siab, ntshav ntshav thiab lwm yam kab mob raug txwv tsis pub ua haujlwm.

(3) Thaum lub sijhawm ua haujlwm siab, yuav tsum muaj kev nyab xeeb thiab txhim khu kev qha, thiab cov neeg ua haujlwm tsim kho yuav tsum ceev thiab dai txoj siv sia ua ntej.

(4) Cov neeg ua haujlwm tsim kho lub ru tsev yuav tsum hnav cov khau muag muag, thiab tsis pub hnav khau tawv thiab khau tawv tawv.

(5) nruj me ntsis siv ntau yam kev tswj hwm kev nyab xeeb thiab kev ntsuas ntawm qhov chaw tsim kho.

(6) Kev tsim kho yuav tsum tau ua nruj me ntsis raws li cov txheej txheem tsim khoom lag luam kev nyab xeeb ntawm qhov chaw tsim kho.

(7) Scaffolds, tiv thaiv nets thiab lwm yam khoom siv yuav tsum tau muab.