... 00-2021.00-3320.5-2529.5-3537.5-3965/45-45CM14.00-2421.00-3523.5-2533.5-3338-3945/65-45R14 ... 000~3,200 hoursSyenite, Syenite Porphyry, Trachyte3,500~3,900 hoursBasalt, Diabase3,500~5,000 hoursSedimentary Rocks Service LifeCalcium Sandstones, Quartz ... 500~5,000 hoursWastes2,800~4,500 hoursIron Pyrites3,000~4,000 hoursManganese Ores1,500~2,500 hoursCopper Ores2,000~4,500 hoursLead-Zinc Ores3,500~7,500 ...