Single-stage telescopic mechanism
Advantages: simple structure, easy installation.
Disadvantages: takes up space, installed 80CM length, can be extended 60CM.
Suitable for new types: B, C type RVs and non-towed, telescopic RVs.
Interleaved gearbox, worm and worm gear
Two-stage telescopic mechanism
Advantages: save space,
installed 80CM length, can be extended 80CM.
Suitable for all RVs.
S1-2-CDH Rack and 65-guide rail mechanism