PVC Sliding window Series: It can be opened large area, push and pull smoothly and easy to be installed, match to the mshutter, enables you to avoid the attrack of the mosquito and make your life to be more comfortable. Selects the high quality sealing rubber, which make air-proof, water-proof and sound-insulation, make your life safe and reliable. The unique drainage system design prevent the rain water and dust entering. The double-glass makes sound-proof, thermal insulation and dust-proof, which also provided the most satisfying effect to your life.