2022

Fresh air chamber and clean room with preheating function

Utility model patent certificate

2022

Embedded Chinese-character aluminum butt-assembled clean ceiling lamp

Invention patent certificate

2022

Comprehensive utilization system of steam condensation water and flooding gas in pharmaceutical factory

Utility model patent certificate

2022

Movable smoke-retaining vertical wall structure for clean room

Utility model patent certificate

2022

Anti-leakage device of drainage pipe in suspended ceiling and drainage system in suspended ceiling

Utility model patent certificate

2021

Indoor ultraviolet sterilization system

Utility model patent certificate