•观格:6x7, 8x10, 10x12, 12x14, 14x17, 17x19, 19x22, 24x27, 30x32莹米

• Size： 6x7, 8x10,10x12, 12x14, 14x17, 17x19, 19x22, 24x27, 30x32mm

•整体采用工具钢锻造

•Hot Drop-forged with high carbon steel

•表面采用镜面抛光，镍镍铬处理，不易生锈

•Suface deal with mirror polish, Ni-Ni-Cr, keep long time good

•检验标准DIN3113

• Accepted standard DIN3113