Shandong Hongda Valve Co., Ltd. is located in Ningyang High-tech Development Zone, 30 kilometers from Beijing-Fuzhou Expressway and 32 kilometers from Beijing-Shanghai Railway. It is an ideal industrial park. Founded in 1996, the company covers an area of 30,000 square meters. According to the development needs of enterprises, a large number of high-tech talents have been introduced and trained. Our company has continuously introduced sophisticated mechanical processing equipment and testing means. All valve parts are processed by CNC numerical control machine tools. The material of the parts is analyzed by FSQ spectrometer. The experiment is carried out on the |