Алмазан нунтаглах дугуйны давуу тал ба хэрэглээ
Most of the industrial diamonds are used to make abrasive tools. The hardness of diamond is particularly high, which is 2 times, 3 times and 4 times that of boron carbide, silicon carbide and corundum respectively. It can grind extremely hard workpieces and has many advantages. Some of its applic...