Kev lag luam chemical zoo suav nrog cov ntaub ntawv tshiab, cov khoom siv, tshuaj thiab tshuaj intermediates, tshuaj tua kab thiab tshuaj tua kab intermediates, khoom noj khoom haus additives, dej haus additives, flavour thiab flavors, pigments, tshuaj pleev ib ce thiab niaj hnub tshuaj industries, uas plays ib tug tseem ceeb luag hauj lwm nyob rau hauv improvin ...
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