BULLDOG Schmitz Trailer Door Lock CT220The CT220 Trailer Door Lock from Bulldog is designed to suit Schmitz trailers and containers with concealed locking bars. It is supplied with the highly developed 10 pin plunge lock with anti drill centre pin and has over one million possible key combinations. This lock secures the overlapping door to prevent opening and completely covers the door handle as well as being resistant to hacksaw and drill attacks. Secures the overlapping door to prevent