技术参数
1.机芯所有零件采用优质不锈钢和铜材制造，使其具有较好的防腐蚀性能 Inside structure is made of stainless steel and copper,that helps indicator to resist any corrosion.
2.铜质轴承和钢质轮轴配合能有效地降低轴承间的摩擦 Combination of copper bearing and steel shaft reduces the fricyion.
3.不带表圈紧固装置，保证使用过程的读数可靠性 Without dial locking screw.
4.不带公差指示器 Without adjustable tolerance markers.
