2022??9??30???????????????????????????????DOZCO??Inida??  Pvt. Ltd??????????????????????й????????????????????????????????Alloy Steel Chisel/Tool and Hydraulic Rock Breaker in fully assembled condition??????????????顣???????????????2021??4??1????2022??3??31????????????2018??4??1????2019??3??31???2019??4??1????2020??3??31???2020??4??1????2021??3??31?????2021??4??1????2022??3??31????漰?????????84314930??84314990???μ?????

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https://www.dgtr.gov.in/sites/default/files/Initiation%20Notification_Rock%20Breaker%20-%20ENGLISH%20%281%29.pdf