亚洲欧美日韩综合久久,国产成人精品日本亚洲77上位,香蕉av777xxx色综合一区,女人被做到高潮免费视频

News

Hilong Successfully Develops Ground Collective Transmission Inner Coating Anti-corrosion Plug-in Connection Pipeline Technology

Date 2016-12-20

(December 20, 2016, Shanghai) Hilong Group has announced that it successfully developed plug-in connection pipeline technology for use in ground pipeline inner coating anti-corrosion. Several days ago, this technology was successfully used in the Changqing Oilfield pipe-laying project. Previously, the Changqing Oilfield installed three different specifications of pipelines from a certain oil production plant using this technology. These pipelines have been put into operation and are in good condition.


The Hilong plug-in connection pipeline technology was developed and designed by the Hilong Oil Equipment Business in conjunction with the Hilong Petroleum Tubular Goods Research Institute and the Hilong Petrochemical Research Institute, on the basis of advanced technology absorbed from overseas. The technology uses a non-welded pipeline connection method to ensure end-to-end inner coating integrity with fast and safe pipeline construction. Meanwhile, Hilong has also developed supporting construction equipment for use in collective transmission pipeline installation and construction both inside and outside of stations.


Cao Yuhong, Hilong Group senior vice president and general manager of Oil Equipment Business, said that: “Hilong has been committed to promoting enterprise development through technological innovation. Following the widespread application of Hilong tubing inner coatings, in recent years we have successively developed inner coatings for ground collective transmission. However pipeline interface issue has been a critical issue for inner coating pipe products’ applications in ground pipelines. The development of plug-in connection pipeline technology will be conducive to promoting the widespread use of Hilong inner coating products in oilfield ground pipeline construction and civil engineering construction.”

亚洲精品久久久久久动漫器材一区| 亚洲综合一区无码精品| 国产成人a在线观看视频免费| 国产欧美日韩亚洲18禁在线 | 丰满五十六十老熟女hd| 亚洲风情亚aⅴ在线发布| 国产精品国产三级国产av剧情| 国产69精品久久久久人妻刘玥| 国产无套粉嫩白浆在线观看| 国产免码va在线观看免费| 蜜臀av人妻国产精品建身房| 国产熟妇人妻精品一区二区动漫| 国产二级一片内射视频播放| 精品偷自拍另类在线观看| 亚洲精品乱码久久久久久中文字幕| 亚洲日韩中文字幕天堂不卡| 精品第一国产综合精品aⅴ| 麻豆蜜桃av蜜臀av色欲av| 狠狠色丁香婷婷久久综合五月| 8天堂资源在线| 亚洲欧美成人aⅴ在线| 男人一边吃奶一边做爰免费视频| 自慰系列无码专区| 全部免费毛片在线播放| 女人18毛片a级毛片| 无翼乌口工全彩无遮挡h全彩 | 玩弄美艳馊子高潮无码| 亚洲蜜桃精久久久久久久久久久久| 日韩 欧美 国产 一区三 | 五月av综合av国产av| 国产免费视频精品视频 | 国产麻豆精品传媒av国产婷婷| 欧美性猛交xxxx免费看 | 国产女厕所盗摄老师厕所嘘嘘| 久久精品无码精品免费专区| 另类国产精品一区二区| 久久婷婷激情综合色综合俺也去| 久久人人爽人人爽人人片av东京热 | 精品无人区一区二区三区| 久久人人爽人人爽久久小说| 亚洲国产成人无码网站大全|