PVC.....poly vinyl chloride
UPVC... unplasticised poly vinyl chloride
UPVC is a;o known as Rigid PVC or hard PVC
Unplasticised means without plasticiser DOP or DBP
DOP or DBP addition makes PVC soft...like in garden hose pipes or flexible pipes
PVC ...Poly vinyl Chloride
Chloride come from chlorine
Chlorines comes from Sodium Chloride....Namak
Mix namak in water... pass electric current...get sodium and Chlorine
Take sodium ...mix in Water ...get sodium hydro oxide..caustic soda...use it to make soap
Mix chlorine with Alcohal under high temperature and high pressure...get PVC resin like you get cheese from milk
Mix resin with stabilisers & calcium. Extrude upvc pipe from this
PVC Resin Stabiliser Calcium
90 Rs/kg 155 Rs/kg 14 Rs /kg
Mixer
Extruder
