2022-3-21 · GP200S  ：. ：. ：. ：,（Mn13,Mn13Cr2,Mn18,Mn18Cr2）,. ：. ： ...GP Series - Shaping Machines with Performance and …Designed for shaping spur and helical gears, internal and external gears, crowned and tapered gears and deep recessed internal gears, the GP Series is available in two model sizes GP200S and GP300S. The GP Series can be upgraded with the Electronic Shaping Guide Option. Workpiece diameter, max. Module, max. Stroke length, max.