in ceiling surround speakers During the production of in ceiling surround speakers, Foshan Dongchuang Audio Technology Co., Ltd. adopts a strict monitoring process to ensure the quality of raw materials. We purchase raw materials according to our own production standards. When they arrive at the factory, we take great care of processing. For instance, we ask our quality inspectors to check every batch of material and make records, ensuring that all defective materials are eliminated before mass production.
Dongchuang in ceiling surround speakers To ensure the quality of in ceiling surround speakers and suchlike products, Foshan Dongchuang Audio Technology Co., Ltd. takes measures from the very first step - material selection. Our material experts always test the material and decide on its suitability for use. If a material fails to meet our requirements during testing in production, we remove it from the production line immediately.speaker volume control switch,wall speakers for tv,best active pa speakers.