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Microenvironment hydrogen supply breathable layer and external application bag
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Oral health article
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Ear-nose plug-in device for improving and preventing upper respiratory tract infection
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Skin-care mask
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Dynamic powder supply device
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A kind of gas permeable material supplied oxygen with skin-whitening and have heating function
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Supply the amenities of carbon dioxide gas
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A kind of ventilative respirator transmitting sound
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A kind of template and method of sealed pipe fittings opening
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Reduce the air-conditioning device of gas concentration lwevel in confined space
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A kind of gaseous state skin oxygen supply whitening product and its application
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It is a kind of locally quickly to produce the composition of oxygen
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Sealed storage composition for capsule and sealed storage method thereof
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Tool supply oxygen and the ventilative material of negative oxygen ion function
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Ventilating material mouth mask with functions of oxygen supply and dehumidifying
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Opening device for slide plunger
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Flow control / shock absorbing seal
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Method and device for complex processing house-hold refuse
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