九九中文字幕国产_在线播放黄色毛片_欧美亚洲国产中文专区在线_日本高清免费一二区视频_aaa级大胆免费人体毛片_国产91口爆吞精_精品毛片无码久久久_亚洲日韩视频在看观看_人妻无码中文字幕2019_国产色吊吊色吊在线视频

Recently, the first 175 mpa ultra-high pressure maintenance test center of Northwest Oilfield was completed and put into use in Xinjiang Laisu Industrial Park.

Covering an area of about 23,000 square meters, the center has more than 40 sets of advanced industrial equipment such as 280 mpa watertight and airtight pressure test tables, and more than 50 kinds of oil field materials quality inspection capabilities. The annual pressure test and high pressure wellhead detection capacity can reach 800 sets, which can meet the assembly test and inspection and maintenance operations of 140 mpa and 175 mpa ultra-high pressure wellheads in deep earth projects.