1. 偷拍激情视频一区二区三区,欧美性猛交xxxx乱大交丰满,少妇精品导航,欧美性猛交xxxx免费看,国产成人亚洲精品狼色在线,中文字幕一区二区人妻,中文字幕乱码视频32,久久久无码精品午夜

          Products & services

          Hilong Gas Sealed Connection

          Product Introduction

          HLDT-GS® can be used in Drill Stem Testing (DST) operation, hydraulic fracturing, well completion and underbalanced drilling with high metal-to-metal internal seal performance under gas pressure loading. Compared with the traditional single function drill string, using HLDT-GS® drill string can save time and reduce cost.

          Product Advantage

          Compared to API connections, HLDT-GS® has the following features:
          ·The use of double shouldered compound sealing structure allows the smooth transition of inner diameter, and smooth metal surface elastic interference fit achieves metal-to-metal seal.
          ·Seal integrity is not affected by tensile load and multiple drilling trips.

          Product Specification

          HLDT-GS®26, HLDT-GS®31, HLDT-GS®38, HLDT-GS®40, HLDT-GS®46, HLDT-GS®50, HLDT-GS®55 and HLDT-GS®65, the sealing structure can be applied to API Spec 7-2 and non-API rotary shouldered connections.

          Product Performance

          Good sealing performance, gas sealing capacity up to 15000 PSI (105MPa).

          主站蜘蛛池模板: 精品亚洲一区二区三区在线播放| 国产精品视频中文字幕| 色久综合色久综合色久综合 | 国产嫩草精品网亚洲av| 精品少妇爆乳无码aⅴ区| 色欲久久久天天天综合网| 亚洲级αv无码毛片久久精品| 久草热久草热线频97精品| 亚洲国产女性内射第一区| 国模吧无码一区二区三区| 最新国产精品自在线观看| 精品久久人人做爽综合| 久久精品国产国产精品四凭| 无码专区无码专区视频网址| 精品粉嫩国产一区二区三区| 九九热在线免费视频观看| 久久婷婷丁香五月综合五| 久久偷看各类wc女厕嘘嘘偷窃| 国产中文字幕一区二区| 国内精品美女a∨在线播放| 一本大道在线一久道一区二区| 国产SM重味一区二区三区| 亚洲国产成人精品激情姿源| 日本高清熟妇老熟妇| 又色又爽又黄还免费毛片96下载| 久热久热中文字幕综合激情 | 国产成人综合久久精品免费| 9l久久午夜精品一区二区| 中文字幕日韩区二区三区| 亚洲第一狼人成人综合网| 国产精品自产拍高潮在线观看| 国产亚洲AV电影院之毛片| 韩国日本三级在线观看| 国产片AV国语在线观看手机版| 日韩在线观看 一区二区| 隔壁人妻偷人bd中字| 好男人好资源WWW社区| 石泉县| 爆乳一区二区三区无码| 国产精品自产拍在线观看中文| 国产亚洲一区二区三区四区 |