熟女人妻中文字幕视频二区_九九国产精品视频久久_2021年亚洲国产精品无码_在线亚洲欧美14p ,yyy777亚洲,中文字幕熟女人妻丝袜丝,久久影院无码视频牛牛夜夜骚,高清无码在线观看视频,黑人大茎战欧美尤物 ,图片区精品综合自拍-亚洲国产精品综合久久久网络-国产综合视频精品一区二区-综合 欧美 亚洲日本 无码夜色一区二区三区_久久SE精品一区精品二区_性色a∨精品高清在线观看_狠狠五月激情六月丁香 亚洲精品无码一级毛片乌克兰_久久黄色网站视频一级片_超碰97人人做人人爱亚洲_无码不卡在线观看

Liaoning Tonglida Technology Co., Ltd., established in July 2010, is located at No. 4, Great Wall Street, Dongdaihe New District, Liaoning Province. It is a large-scale backbone enterprise producing pressure vessels and heat exchangers.

The predecessor of the company was established by the overall relocation of Qinhuangdao Tonglida Container Business Department to Dongdaihe New Area, Liaoning. Qinhuangdao Tonglida Company was founded in 1998. It has dozens of patented technologies such as invention and utility model patents in the manufacture of forced heat exchanger, mastered the core new technology of energy-saving heat exchanger, improved the thermal efficiency of heat exchanger, and played a leading role in energy saving of heat exchanger in domestic petrochemical industry. At present, the company has design qualification of Class I pressure vessel, Class II pressure vessel, A1 and A2 pressure vessel manufacturing qualification, and has a production capacity of 10000 tons/year. It has more than 180 sets of large and medium-sized production equipment, such as large cranes, automatic welding machines, plate rolling machines, Lincoln welding machines, plasma cutting machines, special lathes, etc., and has also purchased high-precision testing equipment, such as X-ray machines, flaw detectors, projectors, thickness gauges, etc., equipped with dozens of computers, and realized local networking for product design, development and management, and achieved office automation, management programming, and production standardization.