Assertion: polypropylene's property | /r/HasProperty | lightweight
Facets:
Source sentences:
text: The important properties of polypropylene include lightweight, low toxicity, high melting point, etc. while the properties of plastic include corrosion resistance, low thermal and electrical conductivity, colour, low cost, etc.
text: Some properties of plastics include their light weight, high resistance to various chemicals, thermal and electrical insulation and their wide range of colors, characteristics and potential uses.