The products are used in mainly: Communication fittings: 1.Interphone 2.Cell-phone 3.Cordless telephone 4.Receive and dispatch communication spend product Audio- visual fittings: 1.是什么意思_The products are used in mainly: Communication fittings: 1.Interphone 2.Cell-phone 3.Cordless telephone 4.Receive and dispatch communication spend product Audio- visual fittings: 1.在线翻译_英语_读音_用法_例句