The frame means may comprise a base frame and {TAIL ~ an operating leaf frame} and the frame means may further comprise {HEAD ~ at least one flexible gasket} integrally formed with the plastic profile 
The frame means may comprise a base frame and { TAIL ~ an operating leaf frame } and the frame means may further comprise { HEAD ~ at least one flexible gasket } integrally formed with the plastic profile
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH