Cov laj thawj tseem ceeb rau kev tsim cov pob zeb yog:
1. Cov pob zeb pob zeb los ntawm qhov sib txawv qhov qhib los yog sib txawv thiab cov lus qhia;
2. Tsis muaj typeetting tom qab zeb txiav ua, los yog tsis muaj sequential numbering raws li cheeb tsam tom qab typesetting;
3. Tsis ua raws li daim ntawv code thiab batch naj npawb muab los ntawm tus neeg muag khoom;
4. Thaum lub sij hawm ntub dej paving txheej txheem, cov khoom sib txuas siv tau kov cov pob zeb saum npoo thiab ua rau cov pob zeb ua rau cov xim marble txiav tshuab rau muag.qhov sib txawv ntawm pob zeb;
5. Tom qab ib lub sij hawm ntawm kev siv cov pob zeb ntuj, cov xim maj mam pib ploj mus, thiab cov pob zeb qub ci ntsa iab pib grey thiab tsaus.
5.1. Cov tshuaj lom neeg muaj pes tsawg leeg ntawm pob zeb tau hloov pauv, piv txwv li, qee cov xim xim hauv lub pob zeb tau oxidized nrog huab cua ua rau cov xim hloov;
5.2. Qee cov zaub mov hauv pob zeb poob siv lead ua paving slabsdej, uas txo cov xim saturation ntawm pob zeb;
5.3. Cov kua qaub los yog kua qaub thaiv tshuab txiavnag hauv lub tshuab granitehuab cua hloov lub suab thiab brightness ntawm lub pob zeb;
5.4. Paving qhov chaw: Pob zeb laser txiav tshuab nqi hauv Is Nrias tebNws yog feem ntau ua rau yellowing nyob rau hauv cov chaw uas muaj zog ultraviolet hluav taws xob.
