6640 Polyester film/polyaramide fiber paper flexible laminate (NMN) ke pampiri e nang le likarolo tse tharo tse feto-fetohang tse nang le likarolo tse tharo tseo lehlakoreng le leng le le leng la filimi ea polyester (M) e kopantsoeng le lesela le le leng la polyaramide fiber paper (Nomex). E boetse e bitsoa joalo ka 6640 NMN kapa F class NMN, NMN insulation paper and NMN insulating paper.