2021??6??7????????????????????????????Grindwell Norton Limited??Carborundum Universal Limited??????????????????????й??????????????Resin Bonded Thin Wheels?????????????????顣????????漰?????????68???μ????????????????????2020??1???2020??12?￡?12???￡????????????2017??2018??2018??2019??2019??2020?????????????

???????1????饗COVID-19?????????????????????????????????30??????????????????????adg15-dgtr@gov.in??adv13-dgtr@gov.in??jd13-dgtr@gov.in??dd17-dgtr@gov.in????????????????????????

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https://www.dgtr.gov.in/sites/default/files/Initiation%20Notification%20-%20Resin%20Bonded%20Thin%20Wheels%20%28English%29.pdf