Gas spring with safety protector and lock for machinery
Actually, protector is to add one more metal tube or other material to cover the stroke rod from getting web, trust or other damge, so as to keep rod clear and last for long time life.
Another effect to use protect is protect user from harm when gas spring suddently get leak after long years using. There is a push parts in end of protective tube, it won’t get close before user push the part.