是同改性聚丙烯的乱丝相互搭结而形成的框架结构，外包裹一层针刺土工布。泥水通过外覆的土工布过滤成清水进入乱丝的框架内，排放出去，排队水管的断面主要有长方形和圆开两各，它的主要优点：整体全塑结构，埋入土中，在不受紫外光的照射下永不腐烂，形状变化多等特点。
Be taken mutually by change the snarled skein of the polypropylene knot but the formation′s frame construction.Outside package alayer pinprick soil work cloth,the mire water pass the soil work of the outside the cloth percolation the clear water enter cross section that the snarled skein′s frame inside,line up to let out.drain pipe primarily contain rectangular with the 2kinds circular,its main advantage：the whole the construction,bury the inside,under not summit to and purple the outside the light of the irradiation never putrefied,shape variety many etc characteristics. |
