タイトルまたは説明

This series are universal and precision lapping ***** upper and lower lapping plates rotate in opposite direction, and the parts make both revolution and rotation in ***** won't cause damage to the parts because the friction force is very ***** can be widely used in double surfaces lapping or polishing for hard and fragile sheet parts which are made of metal or nonmetal materials, such as quartz sheet, glass , ceramic sheet, valve board, valve sheet, rigid seal loop, piston ring and oil pump vane.