Early Russian mines used contact fuzes or shore control. From 1876 to 1908 five galvanic caps with either platinum or electrical fuze were used to trigger the explosives. From 1908 Russian mines used mechanical percussion primed fuzing. The first Soviet magnetic mines appeared in 1939 and came into service use in 1942.
Hot Crushers Brief Introduction
We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment.If you are interested in our products or want to visit the nearby production site, you can click the button to consult us.
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