The casing also includes a slider which is slidably mounted on the casing body or frame so as to be slidable in a lateral direction of the casing body or frame, and is arranged so as to cover at least a part of a bottom and {HEAD ~ both sides} of {TAIL ~ the lower casing member} 
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The casing also includes a slider which is slidably mounted on the casing body or frame so as to be slidable in a lateral direction of the casing body or frame , and is arranged so as to cover at least a part of a bottom and { HEAD ~ both sides } of { TAIL ~ the lower casing member }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL