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The high cost performance system window solution for the whole climate condition.
The high cost performance system door solution for the whole climate condition.
The revolutionary opening methodhas found a good balance between theusage habits and high performance ofChinese customers,and the specialopening system door and window solutionfor the whole climate condition.
High performance system door and window solution for cold region,hot area andhigh acoustic environment.
High performance system door solution for cold region,hot area andhigh acoustic environment.
The C5 series is a new type of window style fresh air product that achieves ventilation and filtration functions by adding a fresh air ventilation window sash on the basis of the Lan-system doors and windows. It utilizes the principle of positive and negative air pressure to introduce fresh air while expelling indoor polluted gases.