OREANDA-NEWS. March 25, 2008. JSC “Kombinat "KMAruda”, Gubkin city, Belgorodskaya region. On the well named after Gubkin the second during this year winning chamber started working – 1/10 Stretenskaya. Its recoverable reserves are 165 000 tonnes of ore with iron content – 37,5 % and magnetic iron – 27,2%. Size of the Chamber: 30 meters lengthwise, 30 meters width way and 60 meters high. It is necessary to note that quartzite from this chamber have good qualitative characteristics – they are well-processed (their grind ability is 74 tonnes per hour). And this will positively affect the time of ore processing.