Yes, all key processes are managed by SPC, such as the thickness of the nailing and the coiling process, the waist diameter of the assembly process, and the CAP/DF/LC aging process
Yes, all key processes are subject to SPC management, such as nailing thickness in nailing process, girdle diameter in assembly process, cap / DF / LC in aging process
Yes, SPC management is carried out in all key processes, such as the nail thickness in the nail roll process, the waist diameter in the assembly process and the aging process CAP/DF/LC.