UNE-EN IEC 60667-3-1:2020 Vulcanized fibre for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Flat sheets (Endorsed by Asociación Española de Normalización in July of 2020.)
2020UNE-EN IEC 60667-3-1:2020 Vulcanized fibre for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Flat sheets (Endorsed by Asociación Española de Normalización in July of 2020.)