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About product and suppliers:
        Alibaba.com offers 868 90mm petri dishes products. About 81% of these are petri dish, 9% are other lab supplies. 

A wide variety of 90mm petri dishes options are available to you, such as free samples. 

There are 877 90mm petri dishes suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and India, which supply 86%, 12%, and 1% of 90mm petri dishes respectively. 

0mm petri dishes products are most popular in Mid East, Southeast Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 284 with ISO13485, 217 with ISO9001, and 108 with ISO14001 certification.