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637 in vitro test products are offered for sale by suppliers on Alibaba.com, of which clinical analytical instruments accounts for 13%, pathological analysis equipments accounts for 3%, and other lab supplies accounts for 1%. A wide variety of in vitro test options are available to you, such as plastic, metal and acrylic.You can also choose from class ii, class i and class iii in vitro test,As well as from manual, electrical in vitro test, and whether in vitro test is gb15979-2002, gb/t18830-2009, or gb2626-2006.