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Petri Dish (Set Of 25), 4 Inches wet and dry bulb temperature iron & steelPetri dish 4 inch 25 sets, product description, petri dish hi everyone, hope you have washed your eye balls and prepare yourself for this thrilling ridetoday, some simple details about petri dish, electronic balances and quinine will be introduced specially for you~~1st, the most important thing in microbial culture~~~~the petri dish`!!!, a petri dish is , a shallow, circular dish with a loose cover, usually made of transparent glass and used to grow