HWK - 1a型无主机室内电话扩音转接器配接YX - 1(2)型室内音箱。

HWK-1A non switchboard indoor telephone commutator connect YX-1 (2) indoor loud box.

youdao

HWK - 1a型无主机室内电话扩音转接器配接YX - 1(2)型室内音箱。

HWK-1A non switchboard indoor telephone commutator connect YX-1 (2) indoor loud box.

youdao