Source google image: https://www.jeulin.fr/media/catalog/product/cache/1/small_image/230×230/9df78eab33525d08d6e5fb8d27136e95/i/m/img_703522.jpg
Schéma bec électrique chimie
Source google image: https://www.jeulin.fr/media/catalog/product/cache/1/small_image/230×230/9df78eab33525d08d6e5fb8d27136e95/i/m/img_703522.jpg