We are offering pvc pipe for water supply. Dimensionshard pvc pipe has a nominal outside diameter 50cm, but soft pvc pipe is generally the largest of 50mm.Hard pvc pipe specifications: gb t13020-1991soft pvc pipe specifications: gb t13527.1-1992 application pvc pipe is divided into two kinds of pvc water supply and drainage, water supply and drainage for municipal and industrial water supply and drainage, civil drainage, irrigation, watering and other vegetation.