日本又骚又刺激的视频在线观看_羞羞视频在线观看免费_国产秀色在线www免费观看_欧美乱大交xxxxxbbb

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    Weihua techonlogy - ???? ??? ?????

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    St.St. plate

    ?????? 1: St. ???

    Laser cut according to the engineering dwg

    ?????? 2: ?? ?????? ??? dwg ???????

    Film or coating in the dust-free shop, light exposure imaging

    ?????? 3: ???? ?? ???? ?? ???? ???? ?? ?????? ? ????? ??????? ?????

    Etching, ie, remove material by way of chemical reaction or physical corrosion

    ?????? 4: ????? ? ?? ????? ?????? ?? ???? ????? ??????? ?? ???? ???????

    Industry oven, hi-temp, low-temp & constant temp.

    ?????? 7: ??? ??????? ? ???? ????? ????? ? ???? ????? ?????? ????? ????? ?????.

    Get deepened by etching once, and texture finish by twice etching, like snow grain.

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    Professional inspectors and packaging workers

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    Done in the dust-free shop, by professional workers and advanced equipment

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    Applied as precision etched parts for the electronic thin components for the aviation industry, machinery and chemical industry

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    Huizhou Weihua Technology Co.? Ltd. ? ???? ????? ?????? - 2019-2021: ???? ?????? ??????.
    ??????? ????? - ????? ?????? ?????? ??? ??????? ?????? ???????, ??? ????? ??????, ?????? ??????? ???????? ?????? ?????, ??? ???? ?????? ??????? ???????? ?????? ?????,
    日本又骚又刺激的视频在线观看_羞羞视频在线观看免费_国产秀色在线www免费观看_欧美乱大交xxxxxbbb
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