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BT8-8 doorbell transformer rated voltage 230/240VAC 50/60Hz IP20 CE certification rail type doorbell protector - AliExpress
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BT8-8 Door Bell Transformer Rated Voltage 230/240VAC 50/60Hz IP20 CE Approval - Price history & Review | AliExpress Seller - Yueqing Open Imp.&Exp. Co., Ltd. | Alitools.io
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