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R&D
Research And Development Cente
Testing Laboratories
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Side Guide System
Top Guide System
Tilt-Turn
Side Hung System
About us
About
History
Honor
Social Responsibility
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Our Vision
Our Business Idea
Culture and Values
Support
Brochure
Inspiration
Videos
News
Media Focus
Company News
Encyclopedia
Join Us
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中文
Research And Development Cente
Testing Laboratories
Lock box torque
The 50N test makes the transmission of the whole window smoother
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March 2018 Exhibition in Nuremberg, Germany
Key Notes|Common sense you must know about door and window hardware! Hurry up
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