To develop manufacturing projects of advanced light type high strength building materials with heat and sound insulation and some other new type materials.
开发先进的轻型高强、隔音、保温建筑材料、装饰材料及其它新型材料的生产性项目。
Compared with metal pipe clean health products need further sound insulation is it reduce high-speed noise decibel that rivers produce count relatively to come.
与金属管相比，凯佳产品不需进一步隔音来降低相对高速水流所产生的噪音分贝数。
High-grade passenger car abroad adopts floating floor with high performance of vibration absorption and sound insulation.
国外高档客车均采用浮筑地板，浮筑地板具有良好的减振、隔声性能。
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