亚洲日日精AV无码区A片_亚洲区高清_4455国产精品视频_亚洲男人天堂一区_未满十八18禁止午夜免费_777爽死你无码免费看一二区

July 10, 2019, China Railway 11 Bureau Group Co., Ltd. conducted research on Aigre’s ZH120 Dual Frequency Normalizer.

During the investigation, China Railway 11 Bureau first visited the production workshop. Mr. Lv Qibing（general manager of Aigre）introduced the working principle, technological advancement, product status and domestic and foreign market prospects of normalizer. Then, the two parties discussed and exchanged views on the following issues: quality control, detail control, stability, environmental protection and energy saving analysis of normalizer. Finally, watching the normalizer China Railway 11 Bureau Group Co., Ltd. expressed its satisfaction with the ZH120 Dual Frequency Normalizer and gave a high comments.