Unglued Self-Locking with Four Buffer Walls – Locking Flaps with Fold-Over Expansion Piece B14.02.00.00.b Unglued Self-Locking with Four Buffer Walls – Locking Flaps with Fold-Over Expansion Piece B14.02.00.00.b Production Team2021-05-18T21:53:48+08:00 ECMA B14.02.00.00.b Unglued Self-Locking with Four Buffer Walls - Locking Flaps with Fold-Over Expansion Piece