Ринок праці · 30.06.19971 хв читання
Safety Standards for Roof Bolts in Metal and Nonmetal Mines and Underground Coal Mines
Локальний автоматичний переклад · Оригінальна мова джерела
Короткий зміст
MSHA is extending the comment period regarding the Agency's proposed rule for roof and rock bolts at metal and nonmetal mines and underground coal mines which was published in the Federal Register on April 28, 1997.