FR4 Washers采购内容I need FR-4 washers about 16mmID and 30mmOD from 2.35mm think material. The tolerance needs to be +/-0.003 on the diameters, so punching will not be accurate enough. Can you drill or ream the ID and lathe trim the OD to make precision washers? 联系方式Co:NexTek, Inc. Tel:1-978-486-0582 Email:gmknextek@hotmail.com联系人:Mr.george kauffman国家:United States产品类别机械五金gmknextek@hotmail.com