P 45-1.0
P-Primary rule
ECCT Cross-section, EuroCeiling
S-Secondary rule
ECC-Carrier profile, EuroCeiling
ECU edge profile, EuroCeiling
ECCS Joint Piece, EuroCeiling
ECK Cross fitting, EuroCeiling
ECJ adjustment bracket, EuroCeiling
ECN Level Fittings, EuroCeiling