av在线一_avtt亚洲_91干网_男操女免费看_国产精品羞答答_国产三级A三级三级

Welcome to Aigre?

more>>Industry Overview

News

Achievements in Scientific Research
addtime:2015-08-06click:2405


In the 48 days from June 20 to August 6, Aigre UN5-150ZB flash welder completed the whole track welding operation of Shanghai-Hangzhou high-speed railway with good quality and quantity. On Sept. 28th, 2010, the Beijing-Shanghai high-speed railway set a world record for the highest speed of trial operation, with the train’s maximum speed reaching 416.6 km/h. This moment was remembered by all the staff of Aigre, who made the UN5-150ZB flash rail welding machine.

Professor Lv qibing of southwest jiaotong university spoke proudly that when Chinese companies purchase the rail welder, they will first choose Aigre. At present, the UN5-150 series welding machines have been successfully exported to South America, South Asia and other countries and regions.


主站蜘蛛池模板: 亚洲乱码av一区二区三区 | 国产美女视频a级做爰色戎 超碰在线日本 | 日女av在线 | 日产精品最新在线 | 国产日本在线视频 | 伦埋琪琪深夜福利 | 欧美疯狂做受BBBBBB | 欧美精品久久久久久久久25p | 麻豆精品一区二区av白丝在线 | 桃花缘高清在线观看视频免费 | 四虎永久在线精品免费视频 | 久久性生活视频 | 午夜国产视频精品久久 | 变态孕交videosgratis孕妇 | h动漫精品| 激情久久综合网 | 2023天天操 | 国产精品久久久久久久av大片 | 久久综合给合久久狠狠狠97色69 | 一区二区色 | av无码精品一区二区三区宅噜噜 | 男人操女人免费看 | 初尝办公室人妻少妇 | 日韩欧美高清 | 免费伦费影视在线观看 | 日韩亚洲av人人夜夜澡人人爽 | 欧美人与动性行为视频 | 亚洲射逼| 天天干夜夜看 | 久久久久久精品影院 | 国产黄色一级片视频 | 高潮迭起av乳颜射后入 | 亚洲一区二区三区桃乃木香奈 | 欧美久久久久高潮不断 | 在线播放无码后入内射少妇 | 麻豆av久久一区二区三区 | 国产成人久久精品流白浆黑豹 | 公车用力好大好硬 | 日本伊人中文字幕 | 亚洲国产成人久久综合一区77 | 久久久久日本精品一区二区三区 |