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QINGHUA SCIENCE & EDUCATION EQUIPMENT CO.,LTD.
QINGHUA ELECTRONIC INSTRUMENT CO.,LTD.

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    Physiology
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    Biological model
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    Ningbo Qinghua Science & Education Equipment Co.,Ltd. is the member of the teaching apparatus line association , being subordinate to the National Education Ministry , and the leading enterprise in ZheJiang teaching apparatus . 

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    News Center

    Knowledge popularization of ph meter digital
    The working principle of ph meter digital: Most ph meter digital works on the principle of primary battery.
    What are the components of ph meter digital
    The ph meter digital is composed of three parts, simply speaking, it is composed of electrodes and galvanometers.

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