2020??9??28????????????????????????????Calibre Chemicals Pvt ??VR Persulphates??????????????????????й???????????????Σ?Persulphates??????????????????顣?????漰?????????283340???μ?????283340 00???μ???????????????????????2019??4???2020??3?￡?12???￡????????????2016??4???2017??3???2017??4???2018??3???2018??4???2019??3??????????????

???????1????饗COVID-19?????????????????????????????????30??????????????????????adg13-dgtr@gov.in??adv13-dgtr@gov.in??dir12@-dgtr.gov.in ??dd15-dgtr@gov.in????????????????????????

?????????????????????ó????????????

??????????

???????У???

????

http://www.dgtr.gov.in/sites/default/files/Initiation%20notification%20of%20Persulphate.pdf