Makina owotcherera a laser asintha ntchito yowotcherera, kupereka ukadaulo wapamwamba komanso mawonekedwe omwe amasintha momwe timawotcherera. Monga bizinesi yapamwamba kwambiri ya dziko, Guangxu ali patsogolo pa kusinthaku, kuphatikiza R&D, kupanga, malonda ndi ntchito ...
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