▁of ▁ 1 3 5 . 8 ▁million ▁t onnes ▁of ▁ore ▁grad ing ▁ 1 . 7 7 % ▁co pper ▁and ▁ 8 6 ▁g / ton nes ▁silver . ▁The ▁annual ▁ore ▁production ▁is ▁around ▁ 2 ▁million ▁t onnes ▁from ▁which ▁ 3 5 , 4 0 0 ▁t onnes ▁of ▁co pper ▁and ▁ 1 7 2 ▁t onnes ▁of ▁silver ▁are ▁extracted . ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Official ▁site ▁ ▁Category : Co pper ▁mines ▁in ▁Poland ▁Category : Pol kow ice ▁County <0x0A> </s> ▁v z Ro om ▁is ▁a ▁software ▁system ▁developed ▁by ▁Man ipe er ▁Limited ▁for ▁multi - party ▁video ▁confer encing , ▁media ▁sharing ▁and ▁Vo IP ▁phone ▁integration . ▁It ▁was ▁launched ▁in ▁July ▁ 2 0 0 8 . ▁ ▁Fe atures ▁ ▁Multi - party ▁video con fer encing ▁Each ▁conference ▁room ▁supports ▁up ▁to ▁ 6 3 ▁concurrent ▁users . ▁Each ▁user ▁has ▁an ▁own ▁room ▁to ▁host ▁individual ▁video con fer encing ▁meeting ▁and ▁all ▁users ▁can ▁share ▁voice , ▁camera ▁and ▁other ▁multimedia ▁to ▁the ▁users ▁in ▁the ▁video con fer encing ▁room . ▁The ▁meeting ▁will ▁be ▁coordin ated ▁by ▁the ▁host ▁of ▁the ▁room . ▁ ▁Media ▁sharing ▁ ▁Screen ▁sharing ▁ ▁S ynchronous ▁video ▁sharing ▁ ▁Multiple - user ▁white board ▁ ▁Rem ote ▁desktop ▁ ▁File ▁transfer ▁ ▁Inst ant ▁mess aging ▁ ▁Vo IP ▁phone ▁integration ▁v z Ro om ▁clients ▁can ▁connect ▁to ▁Vo IP ▁phone ▁and ▁merge