Interesting Facts About Mining Crushers
Interesting Facts About Mining Crushers Aug 03, 2017nbsp018332Here are some interesting facts you may not know In 1906 children as young as 12 years old were working underground in coal mines. Broken limbs and crushed fingers were common. 1907 is the deadliest year in history for coal mining, it is estimated that 3242 people were killed.
Get Price