Serie 4000 ca. 3,5 mm ca. 10 mm 70 x 490 mm 30 Jahre - - Nut/Feder mehrfach ###>4000 Series approx. 3.5 mm (1/8") approx. 10 mm (13/32") 70 x 500 mm (2 3/4'' x 19 11/16'') 30 years - - Tongue/groove several times