❀ Xyoob lub rooj hluav taws xob hluav taws xob tau muab piv nrog pawg board:
❀ Ua haujlwm zoo ntawm xyoob hluav taws xob hluav taws xob board:
①Lub teeb yuag: qhov ntom ntom ntom: txog 60% sib dua dua li pob zeb phaj, yooj yim rau nruab.
②Yooj yim ua: Saws, kub khoov, UV luam ntawv, tsim nyog rau kev tsim qauv zoo nkauj.
③Hluav taws retardant: B1 nplaim ci retardant (oxygen qhia ntau dua lossis sib npaug rau 32%).
④Txij Nkawm - Dawb: Cov nplaim ntawm xyoob hluav taws xob hluav taws xob board yog rub-resistant thiab tuaj yeem ntxuav kom huv nrog dej ncaj qha.
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