Kev kho deg ntawm lub raj reander
Kev kho deg ntawm lub raj xa dej tuaj yeem ua tiav nrog kev siv cov txheej txheem tiv thaiv xws li epoxy, polyurethane, lossis acrylics. Ib txheej txheem ob-kauj ruam yuav tsum tau ua haujlwm ua ntej thov. Ua ntej, lub raj yuav tsum tau ntxuav nrog lub tshuab ntxhua khaub ncaws los yog cov kua dej thiab cov tshuaj ntxuav tes kom tshem tawm cov av, plua plav, lossis roj. Qhov thib ob, qhov saum npoo yuav tsum tau sanded los yog hlau txhuam kom du cov npoo ntxhib lossis puas, nrog rau tsim kom muaj qhov sib txuas zoo tshaj plaws rau txheej. Nws tseem yog ib qho tseem ceeb kom paub tseeb tias lub raj yog qhuav tag ua ntej siv txheej. Thaum ua tiav, txheej txheej yuav tsum tau muab sijhawm txaus los kho kom tiav ua ntej siv.
