UL Certification
LCP Flexible Circuit Board and Its Manufacturing Method - Invention Patent Certificate
A device for automatic unfolding, winding, and rewinding of film rolls
A winding device for automatic unfolding of film - Invention Patent Certificate
A type of diaphragm - invention patent certificate
Diaphragm Materials, Preparation Methods, and Applications - Invention Patent Certificate
13750037362 (Mr. Huang)
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