ماشین سنگزنی پلاستیکی
Grinding (abrasive cutting) - Wikipedia. Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. A wide variety of machines are used for grinding: Hand-cranked knife-sharpening stones (grindstones); Handheld power tools such as angle grinders and die grinders; Various kinds of expensive industrial machine tools called grinding...