KGF-N gerollt NEFF Norm KGF-N-1605-RH-EE KGF-N-2005-RH-EE KGF-N-2020-RH-EE KGF-N-2050-RH-EE KGF-N-2505-RH-EE KGF-N-3205-RH-EE KGF-N-3210-RH-EE KGF-N-3240-RH-EE KGF-N-4005-RH-EE KGF-N-4010-RH-EE KGF-N-5010-RH-EE KGF-N-6310-RH-EE