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Letters Patent

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Letters Patent

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

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