CERTIFICATE

A Sliding Fit Structure of Injection mold construction

A temperature regulating structure for the outer ring of the cavity of Injection mold construction

A sliding fit structure between shaft and collar

Thermal insulation structure of Injection mold construction

An elastic center positioning mechanism between molds

An injection molding mold for double-sided light guide plates

An Improved DVD Disc

A Forming Mold for DVD Disc Substrates

A mold with parallel cooling pipes

A disc mold

A locking mechanism for optical disc molds

A SIM card Injection mold construction with automatic gate cutting

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