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6630/6630A B-chav kawm DMD hloov tau cov ntaub ntawv rwb thaiv tsev
6630/6630A Polyester zaj duab xis/polyester non-woven npuag saj zawg zog laminate (DMD), kuj hu ua B-chav kawm DMD saj zawg zog composite rwb thaiv tsev ntawv, nws yog ib tug peb-txheej flexible laminate nyob rau hauv uas txhua sab ntawm polyester zaj duab xis (M) yog bonded nrog ib txheej ntawm polyester non-woven npuag (D). Thermal resistance yog Class B.
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