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發(fā)布時間： | 瀏覽：7079 | 來源： ??????
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1” (25mm) 24,000RPM
1-1/4”-2” (30-50mm) 18,000RPM
2-1/4”-2-1/2 (55-65mm) 16,000RPM
3”-3-1/2 (75-90mm) 12,000RPM
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2?????????????????????????12.7?????????25.4mm??????????12.7mm???12.7mm???
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