午夜精品一区二区三区在线视,97无码免费人妻超级碰碰踫,中文字制服丝袜在线播放,91九色精品国产

Pressure test reservation

新聞資訊

新聞資訊

Specific Products for Buildings:?Leakproof Connector of the drainage pipeline systems

2009-09-11

According to the market needs, the company developed specific products such as the leakproof connector of floor drain, the leakproof connector. The products could be applied to solve the problem of leaking and backflow of drainage pipeline systems, which effectively strengthen the stability and durability of the building drainage system.