*伪造的铁球

Theforged steel ball that we produce hasfollowingadvantages:wear-resistant,permanentinshape,cracking-proof,whichcanbewidelyusedinlargescalemine,powerplant,cementplantandtheother industry.Thereisalmostnobreakagewhenballimpactmorethan200,000times.Actual breakagerateislessthan1%. Nominaldiameter (mm)(ins) Theoreticaldiameter (mm) Approx.MassperBall g AveragenumberofBallsperMT Diametricaltolerance (mm) 251 26.0 72 13,900 +1.5 -2.0 301¼ 31.2 125 8,000 35 36.1 198 5,050 401½ 41.6 296 3,380 451¾ 46.8 421 2,380 +1.5 -2.5 502 52.0 578 1,730 552¼ 57.2 769 1,370 602½ 62.4 999 1,000 65 67.6 1,270 790 +1.5 -3.5 702¾ 72.8 1,586 630 753 78.0 1,951 510 803¼ 83.2 2,367 420 853½ 88.4 2,839 350 +1.5 -4.5 903¾ 93.6 3,371 300 100 98.8 3,964 250 . . . . . .