??????????
發(fā)布時間： | 瀏覽：7082 | 來源： ??????
???????????
????????????????????????????????????????????????????
????????? ?? ????
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
1????????????????????????????????????????
2?????????????????????????12.7?????????25.4mm??????????12.7mm???12.7mm???
3????????????????????????????????????????????????????????????????
