中文字幕亚洲一区婷婷|中文字幕乱码熟女免费|亚洲国产精品人人做人人|免费视频网站一区二区三区|免费视频网站在线观看入口|偷偷天天狠狠夜夜久久青青|97人妻免费公开视频在线看|最新一本一道中文字幕在线视频

   Culture

Corporate purposes:

Sharing success with our customers, developing with our employees, progress with the society

Business goal:

Built Dinsheng into a world brand

The principle of our company:

High efficiency, perfect management, good quality, stable innovation

Mission and Vision:

Mission:

Exhaust strength for pipeline construction in China

Provide high-quality machine to the world energy development

Vision:

For the benefit of the customers, efforts to innovate