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About product and suppliers:
        Alibaba.com offers 1,128 tws pcb products. About 44% of these are multilayer pcb, 14% are other pcb & pcba, and 12% are earphone & headphone. 

A wide variety of tws pcb options are available to you, 

There are 1,128 tws pcb suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of tws pcb respectively. 

Tws pcb products are most popular in North America, South America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 956 with ISO9001, 935 with ISO14001, and 28 with Other certification.