Pem Hauv Ntej Pob Khoom Xaiv
- Jan 29, 2018 -

1. Kev xaiv cov phab ntsa cov phab ntsa yuav tsum tau ua raws li ntawm qhov sib npaug, verticle, smoothness thiab lwm yam tseem ceeb los ntsuas

2, tus txheej txheem European muaj ntau yam kev xyuam xim kev ua: ntau yuam kev, lub kaum sab xis, lub kaum ntse ntse, kev ncaj, dej nqus, khoov qis zog, hnav ua haujlwm, av qis, ph

3, nyob rau hauv yuav khoom ntawm vuas vuas nyob, xaiv ntawm bricks xa mus rau lub square ntawm chav tsev los xam. xws li 30 square metres hauv qab yeem ntug ntev ntawm 60cm los yog cov hauv qab no, ntau tshaj 30 square metres muaj ntug ntev ntev ntawm 80cm. Qhov no muaj nqis sau cia, vim hais tias cov neeg tuaj yeem nkag mus rau hauv cov khoom ua si pem tsev yuav tsis muaj qhov chaw nyob hauv tsev, yuav raug rau kev txiav txim siab.