Grinder with an abrasive coated or embedded lap on the workpiece surface grinding grinder. Mainly used for high-precision surface grinding of workpieces, external cylindrical surface, conical surface, spherical, flanks and other profiles. Grinder with an abrasive coated or embedded lap on the workpiece surface grinding grinder. Mainly used for high-precision surface grinding of workpieces, external cylindrical surface, conical surface, spherical, flanks and other profiles. Objective: To provide a clean finger plating, no oxidation of the copper surface; provide good conditions for the electroplating plating Goldfinger. B. Requirements: grinding finger position should no oxidation, glue stains, at 20 magnification no scratches mill Pontus motor, do not over-grinding to prevent copper finger bit warped, loss and severe scratches. C. Frequently Asked Questions: grinding can cause excessive finger bit rough gold surface grinding machine V groove, copper warped, scratches, surface alloying; gold surface grinding can cause adverse oxidation surface gold star point exposed copper, gold surface roughness, surface matte gold color, color, can not meet the gold surface tension and immersion tin test, the gold layer off and other defects. The grinders are motor _ Acer Friends Lean Automation (certified) _ grinder provided by the Friends of Lean Automation Co., Ltd. Shenzhen-Hong. Friends of Lean Automation Co., Ltd. Shenzhen-Hong (www.winsole.cn) (www.hy978.com) is an industry leader in Shenzhen, Guangdong, industrial automation control systems and equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , and satisfy customer needs. Friends of lean automation macro leadership with the staff warmly welcome all inquiries negotiations to create a macro Friends lean automation a better future.