Doors and windows designed to establish the biggest problem is that in reality and in particular to maintain long-term stable performance of windows and doors, and seal the role is of utmost importance.
    Doors and windows are mainly used for sealing air, water, dust and noise, especially in rain, snow, wind, sand and sun, regulate the daily changes in temperature. One of the biggest problems is a long-term compression and sealing doors and windows Heat expansion & Cooling shrinkage lead to performance degradation.
    LIYUN, visitors and the company"s Q-LON seals products through the application of science in-depth study of the field, select thermoset resilient core and the composition of the outer cortex, the basic solution to the sealing strip in different circumstances arising after long-term use of permanent compressive deformation.
    Experimental testing and widely used around the world proved that Q-LON seal the nature of superior performance.