1.Mas siv nyob rau hauv kev sib tsoo ua tiav kev ua tiav ntawm denim khaub ncaws;

2.Nrog qhov ntsuas kub thiab ntau;

3.Kev ua kom muaj kev puas tsuaj ceev, zoo polishing, qaim xim;

4.Puas yog tshem tawm, thiab muaj zog 3D kev nkag siab;

5.Txo lossis tsis tas yuav siv pumice pob zeb, txo tus nqi ntawm kev siv;

6.Kev tiv thaiv kab mob ntsuab ib puag ncig, tsis tsim cov khoom muaj tshuaj lom rau ntawm cov ntaub tom qab kev kho mob;