St.Rera muaj cov kws tshaj lij thawj zaug thiab cov kws tshaj lij. Peb tau txais lub koob npe nrov zoo ob qho tib si hauv kev ua lag luam hauv tsev thiab thoob ntiaj teb nrog cov khoom lag luam zoo thiab cov kev pabcuam ua ntej.

Muaj nrog cov ntsiab lus ntawm cov thev naus laus zis siab, txias ua kom zoo nkauj, tshuab hluav taws xob, thev naus laus zis muaj peev xwm tsim kho cov kab sib tsoo thiab ntau hom duab thiab cov qauv zoo.

Cov ntaub ntawv tseem ceeb tej hub Peb siv yog Alumina, ZaMonia thiab silicon nitride. Yog tias koj tsis muaj lub tswv yim twg los xaiv, tsuas yog qhia peb cov khoom siv ua haujlwm ntawm cov seem, peb cov kws tshaj lij yuav muab cov tshuaj zoo tshaj rau koj.

Thov xa koj cov lus nug peb muaj cov duab kos, nthuav dav dav, thiab cov kev xav tau tshwj xeeb.
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