产品优势：
1.高密度，良好的抗压缩性和良好的抗冲击性
2.不对称床铺的良好抵抗力，可用于埋藏在mollisol和quicksand
3.橡胶圈连接，连接方便，但无泄漏
4.内壁光滑，摩擦小，流量大
5.耐腐蚀性好，无环境污染
6.重量轻，运输安装方便，施工成本低
7.适用范围：市政污水;雨水排放;洪水排水;灌溉;矿山和建筑通风;工业废物排放

Product advantages:
1. High density, good compression resistance and good impact resistance
2. Good resistance of asymmetrical bedding, available being buried in the mollisol and quicksand
3. Rubber ring connection, easy but no leakage in the joint
4. Smooth interior wall and low friction, high flow capacity
5. Good corrosion resistance and no environment pollution
6. Lightweight, easily transport and install, low construction cost
7. Application: municipal sewage; rainwater discharge; flood waters drainage; irrigation; ventilation for mine and buildings; industrial waste discharge