Aluminium-yas composite board yog cov khoom siv kho kom zoo nkauj tshiab.Vim nws muaj zog zoo nkauj, muaj yeeb yuj, ruaj, lub teeb yuag thiab yooj yim rau txheej txheem, nws tau tsim sai heev thiab dav siv nyob rau hauv tsev thiab txawv teb chaws.Nyob rau hauv lub qhov muag ntawm tus layman, zus tau tej cov ...
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