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6640 NMN NOMEX Paper Polyester Film Flexible Composite Insulation Paper
Ang 6640 Polyester Film/Polyaramide Fiber Paper Flexible Laminate (NMN) ay isang three-layer na nababaluktot na composite insulation paper kung saan ang bawat panig ng polyester film (M) ay nakagapos sa isang layer ng polyaramide fiber paper (NOMEX). Tumatawag din ito bilang 6640 NMN o F Class NMN, NMN Insulation Paper at NMN Insulating Paper.