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| 
氯 | 
lǜ lún | polyvinyl chloride fiber / PRC brand name for PVC fiber | 
| 
聚 | 
jù lǜ yǐ xī | polyvinyl chloride (PVC) | 
| 
塑 | 
sù gāng | acetal resin / Delrin / unplasticized polyvinyl chloride (uPVC or rigid PVC) | 
| 
永 | 
yǒng jiǔ xū diàn lù | Permanent Virtual Circuit / PVC |