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About product and suppliers:
        Alibaba.com offers 330 bosch spark plug products. About 80% of these are spark plug, 1% are electrical plugs & sockets. 

A wide variety of bosch spark plug options are available to you, such as free samples. 

There are 348 bosch spark plug suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Singapore, and Taiwan, which supply 94%, 4%, and 1% of bosch spark plug respectively. 

Bosch spark plug products are most popular in North America, Domestic Market, and Eastern Asia. 

You can ensure product safety by selecting from certified suppliers, including 40 with ISO/TS16949, 10 with ISO9001, and 6 with ISO14001 certification.