电镀金刚石成形砂轮是引进美国赛车发动机制造商的磨削阀座孔的一项专利。美国北卡罗来纳州以生产Digard发动机为主的开发有限公司发明了一种新的金刚石磨削装置,无论对于何种材质的阀座都可解决过去使用普通磨料砂轮所遇到的砂轮修整难题。密苏里州圣路易斯的Sunnen制造公司制成的 Electroplated diamond forming wheel is a patent that introduces the grinding valve seat hole of American racing engine manufacturer. North Carolina, USA, a Digard Engines-based development company, invented a new diamond grinding device that eliminates the wheel dressing problems encountered with conventional abrasive wheels for any material seat. Made by Sunnen, St. Louis, Missouri