Lub lim tiam dhau los, tag nrho ntawm 31 cov khoom lag luam hauv cov khoom siv tshuaj tseem ceeb tau nce, suav txog 28.44%;31 cov khoom lag luam ruaj khov, suav txog 28.44%;47 cov khoom poob, suav txog 43.12%.Cov khoom lag luam saum toj kawg nkaus ntawm qhov nce yog MDI, ntshiab MDI, thiab butadiene, nrog 5.73%, 5.45%, thiab 5.07%;Qhov to...
Nyeem ntxiv