内六角直柄螺丝刀 CR-V铬钒钢材质锻造硬度高韧性好扭矩大 CR-V CHROME VANADIUM STEELMATERI HARDNESS GHNESS GOOD TORQUE N0,990 N09989 Hex key wren 6mm N0.9909E06 Hex key wrench 5mm N0.9909
