KS E ISO 722:2021
Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round

Standard No.

KS E ISO 722:2021

Release Date

2021

Published By

Korean Agency for Technology and Standards (KATS)

Latest

KS E ISO 722:2021

KS E ISO 722:2021 history

• 2021 KS E ISO 722:2021 Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round
• 0000 KS E ISO 722-2006(2016)
• 2006 KS E ISO 722:2006 Rock drilling equipment－Hollow drill steels in bar form, hexagonal and round