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About product and suppliers:
        Alibaba.com offers 4,041 opel gm products. About 25% of these are auto sensors, 6% are ignition coil, and 6% are ignition distributor. 

A wide variety of opel gm options are available to you, such as free samples, paid samples. 

There are 4,154 opel gm suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Turkey, which supply 96%, 1%, and 1% of opel gm respectively. 

Opel gm products are most popular in North America, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 620 with ISO/TS16949, 489 with ISO9001, and 332 with Other certification.