首页>
外国专利>
A process for the preparation of a dense schutzhuelle for electric coils or other sheet, the of one of rayon or a huelle produced, which by means of the effect of a solution is subjected to are enclosed
A process for the preparation of a dense schutzhuelle for electric coils or other sheet, the of one of rayon or a huelle produced, which by means of the effect of a solution is subjected to are enclosed