用abrasive materials造句子，“abrasive materials”造句

Finish-cut turning, fine boring, finish-turning, finish-milling, shave-planing, fine machining of hardened steel, abrasive materials, hard and grey cast iron, Si-Al-metals, plastics, electrode carbon, etc.

Harder, less abrasive materials require slower spindle speeds and softer, more abrasive materials need faster spindle speeds.

It is very important to resolve the problems of anti-friction ring failure due to partial worn at Northern Erdos Work Areas by reasonable selection of high-abrasive materials and welding techniques.