Top PVC Pipe Machinery Manufacturer in India, DASS Engineering Private Limited is a Patna-based manufacturer of machinery for PVC, CPVC, HDPE, and PET processing applications. Established in 1975, the company manufactures plastic pipe machinery, scrap grinders, pulverizers, socketing and belling machines, slotting machines, and plastic pipe die mould sets. With 50+ years of manufacturing experience, DASS Engineering serves pipe manufacturers, recycling units, production facilities, and industrial buyers across India and selected international markets. The company also provides customized machinery solutions based on production capacity, material type, pipe dimensions, automation requirements, and factory conditions.