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...Int j mech eng rob res s gadekar et al issn www ijmerr com vol no july all rights reserved reivew article defects in extrusion process and their impact on product quality g khan r dalu corresponding author sandipgadekar gmail th the century number of manufacturers had established pipe manufacturing plants customer demand to ensure it is essential identify control monitor parameters some important are condition equipments operating conditions temperatures pressures dies materials instead sincere efforts from still there obstacles which lead purpose this review paper focus various its suggest remedies for improvement keywords plastic defect introduction start up pvc one oldest polyvinyl chloride forms commodity polymers today india started years ago with countrys regarded as an infrastructure finds first plant set mumbai applications such operated by calico a capacity pipes ducts wires cables floorings windows metric tonne year at present indian roofing furthermore use industry boasts pr...