https://www.dekut.com/World_Business/drop-pipe-riser-pipe-column-pipe/ Ashirvad is the pioneer to design, develop and market uPVC Riser/Drop/Column that are being successfully used in the erection of submersible borehole pumps up to depth of 1000 feet. More than 1,000,000 successful installations have taken place across the globe. Tue, 13 Sep 2011 08:59:14 UTC en