The casing 1 is formed with a recess or projection 1a, 1b, thus preventing {TAIL ~ a slip} of {HEAD ~ the resin member} 3 from occurring 
The casing 1 is formed with a recess or projection 1a , 1b , thus preventing { TAIL ~ a slip } of { HEAD ~ the resin member } 3 from occurring
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH