Zhong Xing is a plastic manufacturer with over 30 years of experience in Speaker Appliance. Our specialty is in design and manufacturing of knob, button and many other audio plastic appliances. We pride ourselves with our integrity, responsibility and expertise. Dozens of our long-term customers from across the world have been an important base of our customers. You could count on our ability to communicate and deliver the ideal product that you want. Goods delivery is not the end of our services.