Workers at BHP Billiton's (ASX, NYSE: BHP) Spence copper mine in northern Chile, the world's largest producer of the metal, have begun a 24-hour strike, a union representative said Monday, citing slow progress in labour talks

The action follows two other one-day protests at the mine on May 13 and May 3, in which the union also cited minimal headway in ongoing negotiations,

In April, the company laid off about 7% of its 1,060 Spence workers, following a trend among copper mines in Chile who have been squeezed by low prices and weak demand in key consumer China.

Recently it is fact that mining economic is during depression.which caused various industrial problem. wear resistant ceramic liner is mainly used in mining industry for wear protection. chemshun ceramics manufacturer offer wear ceramic liner  with many shapes and sizes. ideal wear resistant linings consult and supplier in China .