在线网站亚洲观看av_把jk制服美女弄到高潮视频_日本三级11k影院在线_A级毛片簧片免费看_亚洲精品影片日韩美_亚洲日韩欧清无码av一区_中文字幕丝袜福利_菠萝蜜视频在线_91久久影院精品_chinese国产人妖网站视频

MaurerLab has introduced American Maurer company's physical casing wear tester (US DEA-42 project research results) and CWEAR casing wear prediction software to evaluate different lateral force (maximum 14 kN), different mud systems and additives (such as iron ore, barite, etc.), different speeds (maximum 158 rpm) and different wear-resistant materials on casing friction coefficient and wear rate of the quantitative test experiments.