6630 (DMD) filimka polyester-ka polyester fiber-ka aan-dhogorta lahayn ee walxaha jilicsan ee kuleylka kuleylka B waa seddex lakab oo jilicsan oo jilicsan, oo ka samaysan polyester-ka dharka aan timaha lahayn, filimka polyester-ka, dharka polyester-ka ah (DMD), xabagta loo isticmaalo waa bilaa aashito, kulayl u adkaysta, waxay leedahay sifooyin farsamo iyo koronto oo wanaagsan, poliester-ka dharka aan timaha lahayni wuxuu leeyahay awood adsorption, wuxuu nuugi karaa resinka marka la tallaalo. Waxaa loo isticmaalaa dahaarka inter-slot iyo inter-wejiga ee matoorada-hooseeya , ama loo isticmaalo sida dahaarka interlayer ee transformers, qallafsanaan walxaha waa weyn yahay, oo waxay ku haboon tahay hababka farsamada off-line.
6630 (DMD) Warqadaha dahaadhka heerka B waa in lagu kaydiyaa meel hawo leh, qalalan oo nadiif ah heerkulka qolka (ka hooseeya 40°C). Inta lagu jiro gaadiidka iyo kaydinta, waa in fiiro gaar ah loo yeesho dabka, qoyaanka, cadaadiska iyo ilaalinta qorraxda. Muddada kaydinta heerkulka qolka waa 12 bilood, welina waa la isku dayi karaa ka dib marka la gudbiyo shuruudaha farsamada ee xilliga kaydinta.