philanthropic donation
ISO14001
Certificate of High Tech Enterprise
Industry University Research Cooperation Base
ISO9001
High Frequency Welding Machine
Micro Smoke Alarm
Patent Certificate for Smoke Alarm
A Safe Welding Machine
A Convenient and Clean Smoke Alarm
A Fireproof Smoke Alarm
An Alarm with Temporary Visitation Function
A Visual Smoke Alarm
A Smoke Alarm with Adjustable Alarm Frequency and Volume
A Smoke Alarm System that Alarms Through Harmony
A Temperature Alarm - utility Model Patent
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