intercom
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Elevator pum-ffordd intercom tair ffordd system intercom NBT NKT gwifrau a di-wifr ystafell peiriant cyflenwad pŵer argyfwng intercom car
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Pwll car ystafell intercom elevator Kone TJ-2Y/TF-2/TJ-2A/TW-2A/TW-2T/2Z
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Cyflenwad pŵer brys elevator KONE cawr Cyflenwad pŵer intercom HD-212GK/HD-412GK/HD-612GK
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Rhannau elevator intercom car cawr Kone elevator HD-9901/HD-9991