To simplify {TAIL ~ the installation} of {HEAD ~ the closing part} 16, the latching means 18, 19 have introducing slopes 22 
To simplify { TAIL ~ the installation } of { HEAD ~ the closing part } 16 , the latching means 18 , 19 have introducing slopes 22
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH