A slide rail includes {TAIL ~ a fixed rail}, {HEAD ~ an intermediate rail} a movable rail, and a first to fourth rollers 
A slide rail includes { TAIL ~ a fixed rail } , { HEAD ~ an intermediate rail } a movable rail , and a first to fourth rollers
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH