Yazar
Harry N Treaftis
1 cilt bulundu.
Cilt sonuçları
Standard calibration and maintenance procedures for wet test meters and coal mine respirable dust samplers
Thomas F. Tomb, Harry N Treaftis, United States. Mining Enforcement and Safety Administration · Dept. of the Interior, Mining Enforcement and Safety Administration
14 sayfa · 1980
Mine dusts / Standards / Coal mines and mining / Dust control