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premise of this project to cultivate good, low investment cost, the operation can enrich existing operational measures, is less investment and quick force, high-return projects; well planned site traffic premise; premise of good power and water supply, and thus its cultivation premise has obvious advantages. Although vacuum-packed container material type more, but the most common is plastic film. Film impact tester for plastic film, sheet, composite film, aluminum foil and other materials impact the function of measuring film impact tester hemispherical punch at a speed of impact and through the inevitable film samples, measuring the depletion punch energy, in order to evaluate the ability of pendulum impact resistance of the film. That is, in the next 48 hours 500c aging, if it is used for endometrial cpp, and then be placed in

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