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Laboratory testing cosmetic product, cruelty free, not tested on animals beauty and skin care fluid. hand wearing medical glove doing test with petri dish and medium
Male hands in protective gloves hold test tube in hands produces chemistry test of motor oil automatic gearbox and hydraulic booster
Analytical chemistry - sample being pipetted into test tube for analysis in laboratory.
Laboratory testing lab dropper with yellow fluid test in petri dish
Microbiology. Hands of a microbiologist pouring agar into a petri dish
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