久久精品熟女亚州av麻豆,无码专区中文字幕无码野外,婷婷97狠狠成人免费视频,色综久久综合桃花网国产精品,国产现实无码av,国产人妻人伦精品久久久,国产亚洲熟妇综合视频,亚洲高清码在线精品av

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.”

主站蜘蛛池模板: 欧美人与动牲交片免费 国产亚洲欧美日韩一区图片 少妇爽滑高潮几次 久久久久国产精品人妻aⅴ四季 久久久久青草线蕉综合 高潮喷吹一区二区在线观看 欧美人与动牲交大全免费 亚洲免费精品aⅴ国产 国产亚洲精品久久www 丰满人妻无码∧v区视频 中文无码字幕一区到五区免费 国内精品久久人妻无码妲己 少妇熟女久久综合网色欲 久久亚洲精品无码观看不卡 午夜亚洲精品久久一区二区 国产精品点击进入在线影院高清 大屁股肥熟女流白浆 麻豆国产成人av在线播放 亚洲熟妇自偷自拍另欧美 综合成人亚洲网友偷自拍 欧洲人激情毛片无码视频 亚洲国产老鸭窝一区二区三区 高清人人天天夜夜曰狠狠狠狠 国产va免费精品高清在线观看 一本一道中文字幕无码东京热 日本一区二区三区不卡免费 无码少妇一区二区三区免费 亚洲日本丝袜丝袜办公室 看国产一毛片在线看手机看 亚洲日韩看片成人无码 999久久国产精品免费人妻 | 高潮喷吹一区二区在线观看| 国产欧美国产精品第一区| 久久一本精品久久精品66| 一本大道精品视频在线| 日本50岁丰满熟妇xxxx| 丰满人妻被黑人中出849| 久久久久青草线蕉综合| 中文字幕亚洲中文字幕无码码 | 午夜福利午夜福利1000| 波多野结衣av一区二区无码|