6643 Modified Polyester film / polyester non-saka m laminate ne mai uku-Layer 100% cikakken m composite insulation takarda a cikin abin da kowane gefen polyester film (M) yana bonded daya Layer na polyester non-saka masana'anta (D), sa'an nan. mai rufi da F-class resin insulating lantarki. Ana amfani da 6643 DMD azaman rufin ramin, rufin tsaka-tsaki da rufin layi a cikin injinan lantarki na aji F, musamman dacewa da tsarin shigar da injin injin. 6643 F-class DMD ya wuce gwajin SGS don gano abubuwa masu guba da haɗari. Ana kuma kiranta azaman DMD-100, DMD100 takarda insulation.