Yamazaki Mazak Mazatech H-630, H-500/50 Manual Yamazaki Mazak Mazatech H-630, H-500/50 NC Lathe. Detailed Operating and Maintenance Manual (2 publication) with Alarm Code and M Code tables. Manufacturers: Yamazaki Models: H-500/50 H-630 Mazak Contents: Operators Manual Maintenance Manual