1. pvc pong wav polyvinyl chloride, physical bang, waw' tujqu' vaDHa'wI' 'ej flexible, vaDHa'wI' pvc 'ach widely lo' mep Hap 'u'. pa'vo' chemical composition pvc 'eblIj QI'yaH-crystalline Hap 'u', qaStaHvIS qeq lo' pIj pong ngaDmoHwI', lubricants, chach Duy, rItlh, mup resistance 'ej latlh additives chel.
2. 'angbogh Da adverse chaq ghajbogh pvc QaQ ta' baH yIqaw Hap 'u', jen HoS, resistance climate choH law' law' geometrical stability je majQa', Duy, reducing agents oxidizing 'ej hydrocarbons pey such as qIm sulfuric pey qIm nitric pey corrosion, 'ej oxidizing vaj contact aromatic hydrocarbons, chlorinated HoS ta' HoS resistance chaq pey 'ach ngeD HoS , worth attention.
3. pvc characteristics SoHvaD law'qu'pu', mIw SoHvaD leSpal pa' scope, pIj mach molecular ngI' pvc Hap 'u' lo'.