•规格:8,10, 11,12,13, 14, 15, 17, 19, 22, 24, 27, 30, 32毫米

•Size： 8, 10, 11, 12,13, 14, 15, 17, 19, 22, 24, 27, 30, 32mm

•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