2023澳门六今晚开奖结果出来,国产精品人成视频免费播放,妺妺窝人体色www看人体,大胸美女被吃奶爽死视频

1) Compare with traditional grinding wheels, CBN wheels have the cutting fast and will not cause rough surface and burn problems

2) Fast and cool cutting action without coolant

3) Side surface for flat grinds on skews, scraper cutters and tool bits

4) No need dressing or turning

5)Wheel stays flat, never changes shape.The thermal conductivity of CBN can reach 10 to 100 times that of corundum grinding wheel, so the grinding heat can be quickly exported and reduce the workpiece deformed.