很专业，因为很急才要大家帮忙


聚氯乙烯（PVC）材料生产的防水卷材造价低、耐老化、抗紫外线性能好，具有  一定的拉力强度和断裂伸长率，收缩率大，低温柔软性好，施工方便。有机械固 定、热合、冷粘等方法。特别用于屋面防水。我公司生产的PVC防水卷材的物理性 能基本上能达到国际同类产品的先进水平。

The waterproof rolling material produced by Polyvinyl chloride (PVC) has born low cost, aging resistance, good anti-ultraviolet property, certain tensile strength and elongation at break, large shrinkage rate, flexibility with low temperature, as well as easy for construction. The mechanical fastening, heat seal and cold sticking can be applied, especially for the roof waterproof engineering.
We can provide this kind of PVC waterproof rolling material with good physical performance, which can reach international advanced level of the same products in china.

传说中的佳佳又重显江湖了,佩服佩服.

谢谢梁咏琪！

确实很专业啊！佩服！