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Polypropylene has a distinctive IR spectrum and possesses characteristic thermal properties. It has a density between 0.880 and 0.913 g per cm3. The permeation properties of molded polypropylene ...
132022.05
he thermogram of the specimen is similar to the thermogram of USP High-Density Polyethylene RS, similarly determined, and ...
112022.05
The moisture-proof function of packaging is mainly controlled in two aspects, one is to block the invasion of external water mole...
092022.05
48mm and 63mm are two common specifications of the current test strip vial. The two only differ in height, and the functions are ...
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