• <sup id="mmmmm"><code id="mmmmm"></code></sup>
    <sup id="mmmmm"><delect id="mmmmm"></delect></sup>
    <sup id="mmmmm"></sup>
    亚洲国产男人本色在线观看的a站,久久精品中文字幕有码,国产欧美日韩亚洲更新,日本欧美一区二区三区在线,国内精品自产拍在线观看,色噜噜狠狠色综合网,无遮挡边摸边吃奶边做视频,久久婷婷五月综合色欧美

    Products & services

    Hilong Non-Slip-Crush Drill Pipe

    Product Introduction 

    Hilong Non-Slip-Crush (NSC) drill pipe is specially designed for solving problems such as the damage to the drill pipe body by the slip, the low operation efficiency of double-elevator, and the high labor intensity in the operation of TIH and TOH. This product adds one more shoulder positioned close to the box end based on normal API standard drill pipe. During the trip operation, drill string is set at the toothless pneumatic slip, and its weight is supported by the bearing slider of the slip along the axial direction. Besides, this product can afford a convenient way for make-up and break-out by raising its position.                                                                                                                                                                  

     

    Product Advantage

    Compared to standard drill pipe, Hilong NSC drill pipe has advantages as follows:

    ·It completely avoids the slip crush on drill pipe body when associated with toothless pneumatic slip, thus extend the drill pipe service life;
    · It changes from the traditional double-elevator into single-elevator in the opertation of TIH and TOH, which bring the advantage with no need for removing and hanging the elevator frequently. 
    At the same time, a higher box tool joint position design can lead to the make and break more convenient, lower the labor's intensity; and it improves the safety of operation;
    · Improving about 15% efficiency of TIH and TOH which compared with double-elevator, reducing non-drilling time, lowering the cost of operation;
    ·Reducing the sticking risk of drill pipe effectively, lowering the frictional resistance remarkably.

    Product Specification

    (a)Size Range: 4", 4 1/2", 5", 5 1/2", 5 7/8", 6 5/8" etc;
    (b)Steel Grade: G105, S135, HLDT-SH®V150, HLDT-SH®U165.

    主站蜘蛛池模板: 精品日韩欧美一区二区在线播放| 国产精品综合久久久久久久免费 | 男女一级毛片免费视频看| 日韩视频在线观看免费| 亚洲qingse中文字幕久久| 精品国产电影在线看免费观看| 亚洲人成小说网站色| 亚洲午夜爱爱香蕉片| 亚洲AV无码无线在线观看| 日日噜噜噜噜人人爽亚洲精品| 伊人婷婷五月| 欧洲熟妇色xxxx欧美老妇免费| 久久精品国产精品青草app| 尹人香蕉久久99天天拍久女久| 中文字幕亚洲综合久久菠萝蜜| 亚洲中文综合字幕在线| 99久久精品久久久久久清纯| 18禁黄污吃奶免费看网站| 中文字幕人妻丝袜成熟乱| 18禁黄污无遮挡无码网站| 国产精品玖玖玖在线资源| 瑞安市| 国产成人啪一区二区| 少妇无码太爽了不卡视频在线看 | 欧洲美熟女乱又伦AA片| 亚洲精品久久久久久久久久久 | 久久99国产精品久久99无号码| 亚洲aⅴ无码日韩av无码网站| 久久AV无码专区亚洲AV桃花岛| 日日噜噜夜夜狠狠免费视频l| 天堂av在线一区二区| 在线免费不卡av网站一区| 精品国产AV一区二区三区| 国产普通话一级毛片| 国产丰满乱子伦无码专区| 精品综合久久久久久97超人| 国产91在线|日本| 亚洲中文字幕无码二区在线| 中文字幕久久久久久精| 岛国av免费观看| 狠狠色噜噜狠狠狠狠97|