M3
scrapers: PUR plastic, gray
stiffening core: Galvanized steel
cap screws: DIN 912 Galvanized steel, blue passivated (screws are included)
( with the size h1 = 18, the scraper is fixed only with a central screw.)
Housing: Aluminum
- natural color anodised (ALN)
- anodized black (ALS)
dragonflies use:
Glass plastic body
filling: colorless transparent (K)
potting: mineral