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About product and suppliers:
        Alibaba.com offers 1,295 1 oz copper thickness pcb products. About 55% of these are other pcb & pcba, 26% are multilayer pcb. 

A wide variety of 1 oz copper thickness pcb options are available to you, such as 6-layer, 12-layer, and 4-layer. You can also choose from free samples, paid samples. 

There are 1,297 1 oz copper thickness pcb suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 99%, 1%, and 1% of 1 oz copper thickness pcb respectively. 

 oz copper thickness pcb products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 397 with ISO9001, 97 with ISO14001, and 81 with ISO/TS16949 certification.