Applicable to relevant national and international testing standards, the products are widely used.It is used by well-known domestic enterprises and professional testing institutions, and is exported to Europe, the United States and other countries.The second-generation product adopts digital control technology and is operated through a human-machine interface to achieve accurate measurement data.The RH-02C type can be used for scribing detection of roller-ball pen heads such as gel pen refills, ballpoint pen refills, water-based pen refills, and medium-oil pen refills, such as the initial writing performance, ink output, scribing length, and ball base body wear of the pen refills. It can also test the writing quality of ink, etc. It is an indispensable testing instrument for pen refill factories and ink factories.