Assertion: pvc | /r/PartOf | the resin material
Facets:
Source sentences:
text: World's gross annual output amount of polyolefin (mainly being polyethylene and polypropylene) and polyvinyl chloride has reached 1.5 hundred million tons, accounts for more than 80% of world's general-purpose plastics ultimate production, belongs to the resin material that has a large capacity and a wide range.