Tribute to Shenzhou! Seiko successfully realized 2.5mm all steel
Hangzhou Jinglass successfully promoted the 2.5mm toughening, and the technical indicators perfectly met the requirements of double glass components.
Waveform less than 0.2/300mm
Bow shape is less than 1.5 per thousand.
Fragments equal to 70 or more.
Ball falling height is more than 1000mm (1040g steel ball).