Research And Development Cente Testing Laboratories
The company has obtained a total of 32 patents, including 5 invention patents (3 patents have been obtained, 2 patents are in application); 27 utility model patents and software copyright patents (24 patents and an international PCT patent have been obtained, 3 patents are in application). Three products have won national high-tech products. The company has established a research and development center and runs the ISO9000 quality management system.
Door and window side sliding hinge structure-utility model patent

Door and window side sliding hin...

Concealable hinge assembly-utility model patent

Concealable hinge assembly-utili...

Concealable hinge assembly-utility model patent

Concealable hinge assembly-utili...

Device that can lock any window opening angle-utility model patent

Device that can lock any window ...

Two-way lock box structure with self-locking function-utility model patent

Two-way lock box structure with ...

Window with concealable hinge-utility model patent

Window with concealable hinge-ut...

Side-opening door and window hinge structure-utility model patent

Side-opening door and window hin...

The structure of the door and window two-way lock box-Utility model patent

The structure of the door and wi...