Bangalore-based rishi polymac manufactures supplies hdpe pipes and fittings. These pipes and pipe fittings are manufactured in most sophisticated and modernised plant, out of 100 percent virgin materials as per recommendations of indian and international standards. Following are some technical features of these products which include: manufactured they are designed for a working life of 50 years at 27 deg c, to withstand a pressure of up to 50 kg/cm2. With a safety factor of 1.3, they permit a working stress of 39.5 kg/cm2. These pipes are nnon-corrosive and lighter compared to most other pipes of their category is the outstanding feature of these pipes.