... capacity of 1-3KG and 3-5KG have the
self-
locking function. It's model is SW1-3 and ... SW3-5. The
self-
locking function is means when you pull and unloose the ... hook will keep still. Not up and down. The
self-
locking spring balancer stroke is 3.0 meters, and the ... time: have stock, or depended. Shan Dong Finer
Lifting Tools co.,LTD Email:
[email protected] http://www.cargotrolley ...