Zhejiang Shengzhou Tianshi Electroacoustic Co., Ltd. One company is specialized manufacturing speaker, speaker parts and plastic injection products for 13 years. We are able to manufacture all kinds of speaker frame, plastic parts of speaker, cone, washer, T-yoke, gasket, damper, voice coil, dust cup, terminal, grills and other parts. Our competitive price and superior quality to serve you and your clients profit. Any interest, pls feel free to contact me.