1, the sound insulation effect is good, Huanghaiyou doors and windows, the selection of sound insulation strips is rigorous and meticulous, and the ingenious high-end mute technology design makes the sound insulation effect of doors and windows sublimate, and the sealing performance is better than that of Shimi doors and windows.

2. There are many kinds of doors and windows with good quality. The quality of advanced doors and windows in the Yellow Sea is better than that of stone rice doors and windows, such as solid wood, plastic steel and aluminum alloy.