Yas hollow board tseem hu ua Wantong board, corrugated board, thiab lwm yam. Nws yog cov khoom siv tshiab nrog lub teeb yuag (hollow qauv), tsis muaj tshuaj lom, tsis muaj kuab paug, tsis muaj dej tsis zoo, shockproof, anti-aging, corrosion-resistant thiab nplua nuj xim.Khoom siv: Cov khoom siv raw ntawm lub hollow board yog PP, kuj hu ua ...
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