Txawm hais tias qhov xwm txheej muaj kabmob sib kis hauv kuv lub tebchaws tau raug coj los tswj, vim tias qhov kub thiab txias poob qis thaum lub caij ntuj no, peb yuav tsum tau saib xyuas ntau dua rau kev tiv thaiv thiab tsis txhob muab sijhawm rau tus kabmob sib kis. Yog li ntawd, thaum peb tawm mus, peb nkag mus rau cov cheeb tsam uas muaj tsheb khiav ceev thiab nkag mus rau cov chaw pej xeem. Los yog hnav lub npog ntsej muag, thiab tshuaj tua kab mob nrog cawv tom qab tawm mus, thiab tshem tawm lub npog ntsej muag uas siv pov tseg, vim tias hnav lub npog ntsej muag tsis tuaj yeem tiv thaiv lwm tus, tab sis kuj tiv thaiv koj tus kheej, thiab tseem ceeb tshaj, tiv thaiv koj tsev neeg.
Thaum peb paub qhov zoo thiab qhov tsis zoo ntawm cov qhov ncauj qhov ntswg pov tseg, peb tuaj yeem paub qhov txawv ntawm lawv los ntawm kev soj ntsuam cov hlau strips. Txhawm rau kom haum rau lub ntsej muag zoo dua, cov hlau strips muab tso rau hauv lub npog ntsej muag, thiab cov hlau dav dav yog nyob rau saum lub npog ntsej muag. Yog tias koj tuaj yeem pom meej Lub sab ntawm cov hlau sawb yog tig mus rau sab nraud, thiab sab uas cov hlau tsis pom yog tig rau sab hauv.
Tom qab ntawd peb tseem tuaj yeem paub qhov txawv ntawm lub ntsej muag thiab sab nraum qab ntawm daim npog qhov ncauj pov tseg los ntawm cov ntaub ntawm daim npog qhov ncauj pov tseg. Raws li cov degree ntawm smoothness, lub npog ntsej muag yog feem ntau du vim hais tias lub sab nrauv muaj nuj nqi ntawm thaiv cov dej, thaum lub puab txheej yog feem ntau cua-permeable. Cov khoom siv yog ze rau ntawm daim tawv nqaij, uas yog qhov tsim nyog rau kev tswj kom ua pa du. Cov khoom yog muag heev thiab veneer yog xis. Yog li ntawd, cov khoom siv txheej sab hauv tsis tshua muaj siab dua li txheej txheej. Lub smoother sab ntawm cov khoom siv npog ntsej muag ntsej muag sab nraud thiab lub ntsej muag muag sab hauv.
