GM-2B-R125 GM-2B-R125S GM-2B-R1.5 GM-2B-R1.5S GM-2B-R1.75 GM-2B-R10.0 GM-2B-R2.0 GM-2B-R2.0S GM-2B-R2.5 GM-2B-R2.75 GM-2B-R3.0 GM-2B-R3.5 GM-2B-R4.0 GM-2B-R4.5 GM-2B-R5.0 GM-2B-R6.0 GM-2B-R7.0 GM-2B-R8.0 GM-2BS-R0.15 GM-2BS-R0.2 UM 不等齿高性能通用加工 PM 高性能通用加工 GM 通用加工 HM 硬加工 NM 铜加工 AL  铝加工 SM 难切削材料加工