Polypropene (PP)
It has a high melting point & good chemical resistance; that makes it suitable for hot liquids. Used to make medicine bottles & bottle caps.
Polyvinylchloride (PVC)
It has good clarity, weather ability. Used in building & construction.
Polyethylene Terephthalate (PET, PETE)
Has good resistance to moisture & gas. Used to make food jars like jam & pickle bottles.