a lid portion having a cap through hole formed therein to penetrate the lid portion in the sliding direction, the lid portion having {HEAD ~ a surrounding portion} that surrounds the cap through {TAIL ~ hole}; and 
a lid portion having a cap through hole formed therein to penetrate the lid portion in the sliding direction , the lid portion having { HEAD ~ a surrounding portion } that surrounds the cap through { TAIL ~ hole } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH