Nano carbide ball nose Mill tools perfect for Hard Materials carbon steels , alloy steels , pre-hardened steels , hardened Steels, cast iron,Titanium Alloy, Graphite, plastic, composite material ...

SANTIAGO (Reuters) - Chilean state-owned miner Codelco said on Thursday it would use grinding balls made from recycled material in its flagship El Teniente mine, allowing it to reduce carbon dioxide ...