Liu Ping, a computer numerically controlled (CNC) machine tool operator working at Chongqing Chuanyi Control Valve Co Ltd, is pictured at the company's workshop on Nov 14, 2017. [Photo by Zhu Lingqing/chinadaily.com.cn]

Breaking through the manufacturing bottleneck

In 2001, Liu asked his leader to transfer him from the ordinary machine shop to the company's newly established CNC workshop.

There was a lack of CNC machine tool operators at that time and Liu wanted to enter the new field.

"I bought a computer in the late 1990s. I could feel this computer numerical control will be the trend and the future," he recalled.

Already well aware of the importance of keeping up with the rapid pace of innovation, Liu made every effort to study the new CNC machine tool.

After diligent studying and strenuous training, Liu mastered how to give full play to the functions of the CNC lathe. Not only he could efficiently complete the processing task, he could also explore process and tool solutions for high-tech products.

Since 2011, Liu has been involved in the research and development of HVH Black Water Control Valves, Butterfly Valves, High Pressure Ball Valves and many other special purpose valves, some of which could only be imported from overseas companies in the past.

"We gradually broke up the technical monopoly of international companies. Our products not only replaced the imported one, they are also exported to foreign markets such as Kazakhstan," Liu said.

Liu's brilliant craftsmanship has brought him many honors. He has a national-level skilled master studio named after him and was elected as one of the 10 craftsmen representing Chongqing's craftsman spirit last year.

"There is no perfect product. What I can do is try my best to improve the accuracy of our products. It requires the repeating of tests and the courage to make innovation," he said.

In addition, he would sometimes go to college to exchange knowledge and experience with teachers there, to get a quicker and deeper understanding of the new technologies and skills in the field.