Polyvinyl alcohol (PVA) with a degree of polymerization of 1750具体是什么东西?Polyvinyl alcohol (PVA) with a degree of polymerization of 1750 and analcoholysis degree higher than 99% was from Lanzhou Vinylon Factory (China).这是文章里的

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Polyvinyl alcohol (PVA) with a degree of polymerization of 1750具体是什么东西?Polyvinyl alcohol (PVA) with a degree of polymerization of 1750 and analcoholysis degree higher than 99% was from Lanzhou Vinylon Factory (China).这是文章里的

Polyvinyl alcohol (PVA) with a degree of polymerization of 1750具体是什么东西?Polyvinyl alcohol (PVA) with a degree of polymerization of 1750 and analcoholysis degree higher than 99% was from Lanzhou Vinylon Factory (China).这是文章里的
Polyvinyl alcohol (PVA) with a degree of polymerization of 1750具体是什么东西?
Polyvinyl alcohol (PVA) with a degree of polymerization of 1750 and an
alcoholysis degree higher than 99% was from Lanzhou Vinylon Factory (China).这是文章里的原话,请问这两种东西具体是什么?

Polyvinyl alcohol (PVA) with a degree of polymerization of 1750具体是什么东西?Polyvinyl alcohol (PVA) with a degree of polymerization of 1750 and analcoholysis degree higher than 99% was from Lanzhou Vinylon Factory (China).这是文章里的
(中国)兰州维尼纶厂生产的1750聚合度的乙烯聚合乙醇,醇解度超过99%,