The total global production capacity of VC was 30.432 million t/a in 1998, the output was 25.807 million tons and the average operating rate was 85%.

 
  • 1 998年全世界氯乙烯總生產(chǎn)能力為 3 0 4 3 .;2萬(wàn) t;產(chǎn)量為 2 580
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan