The two-chip and CUP FACE structure is all about increasing the elasticity coefficient.The measured CT is around 350, far exceeding the international standard of 267.Three-dimensional structure, increase the internal space, better sound.Two counterweight screws, lower center of gravity.High - grade electroplating, surface black PVD vacuum coating, high-end generous.CUP FACE 2041 beating surface + casting ti6-4 main body, plasma welding technology.After many experiments, more scientific distribution of CNC impact surface, high anti - representative.