2021. An AN OVERVIEW ON APPLICATION OF SIX SIGMA METHODOLOGY IN PLASTICS INJECTION MOLDING INDUSTRY : AN OVERVIEW ON APPLICATION OF SIX SIGMA METHODOLOGY IN PLASTICS INJECTION MOLDING INDUSTRY . Pakistan Journal of Engineering, Technology and Science. 9, 2 (Nov. 2021). DOI:https://doi.org/10.22555/pjets.v9i2.577.