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Letters Patent

A New Fire-proof Glass for Exterior Wall
A New Fire-proof Glass for Exterior Wall
A Patent Certificate of Magnetically Suction Ground Spring Fire-proof Door
A Patent Certificate of Magnetically Suction Ground Spring Fire-proof Door
A Patent Certificate for Composite Thermal Insulation and Fireproof Window Frame
A Patent Certificate for Composite Thermal Insulation and Fireproof Window Frame
A Stainless Steel Fire-proof Door Structure with Magnetic Lock
A Stainless Steel Fire-proof Door Structure with Magnetic Lock
A Fireproof Glass Wall 20160819
A Fireproof Glass Wall 20160819
Patent Certificate - Fireproof Glass for Low Floor
Patent Certificate - Fireproof Glass for Low Floor
A New Type of Fire-proof Glass
A New Type of Fire-proof Glass
A Push-pull Stainless Steel Fire-proof Window
A Push-pull Stainless Steel Fire-proof Window
A Fire-proof Structure for Light-transmitting Platform or Light-collecting Well
A Fire-proof Structure for Light-transmitting Platform or Light-collecting Well
An indoor fireproof glass partition system
An indoor fireproof glass partition system
A Spliced Fire-proof Window
A Spliced Fire-proof Window
A Patent Certificate for Eccentric Ground Spring Fire-proof Glass Door
A Patent Certificate for Eccentric Ground Spring Fire-proof Glass Door