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About product and suppliers:
        Alibaba.com offers 755 90mm petri dishes products. About 81% of these are petri dish, 1% are dishes & plates, and 1% are beaker. 

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

There are 753 90mm petri dishes suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and India, which supply 78%, 19%, and 1% of 90mm petri dishes respectively. 

0mm petri dishes products are most popular in North America, Eastern Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 340 with ISO9001, 320 with ISO13485, and 150 with ISO14001 certification.