2021久久国自产拍精品,欧美性猛交XXXX黑人猛交,99在线精品一区二区三区,国产成人A亚洲精V品无码,国产精品国产三级国产专区50,韩国三级在线观看久,男人女人做黄刺激性视频,亚洲AV综合A国产AV中文,日本一卡2卡三卡4卡免费网站,亚洲国产精品国自产拍AV

  • <fieldset id="6co0c"><table id="6co0c"></table></fieldset>
    <fieldset id="6co0c"></fieldset>
    <fieldset id="6co0c"><table id="6co0c"></table></fieldset>
  • <abbr id="6co0c"></abbr>
    <fieldset id="6co0c"><menu id="6co0c"></menu></fieldset>
      <fieldset id="6co0c"></fieldset>
      <ul id="6co0c"><tfoot id="6co0c"></tfoot></ul>
    • <ul id="6co0c"></ul>
    • <cite id="6co0c"></cite>
      <tfoot id="6co0c"><input id="6co0c"></input></tfoot>
      <cite id="6co0c"></cite>
      • About HILONG

        HomeAbout HilongHilong Industry

        GO Back

        Hilong Drill Pipe (Wuxi) Co., Ltd.

        Established in August 2005, Hilong Drill Pipe (Wuxi) Co., Ltd. is the first drill pipe and drilling tool manufacturer of Hilong Group of Companies. It specializes in production of such products as drill pipe tool joints, heavy weight drill pipe tool joints and special drill pipe tool joints.
        As a modern specialized petroleum drill pipe tool joint manufacturer, the Company boasts industry-leading equipment and technology for production, processing, inspection and so on and an advanced drill pipe tool joint production line with sound technical process, including: multi-way hydraulic forge production line, IPSEN push-rod continuous furnace heat processing production line, CNC high-efficient thread processing lathes for processing various special threads, etc. Key products of the Company include API-standard steel-grade drill pipe tool joints in the types of E, X, G and S, with size specifications ranging from 2-3/8" to 6-5/8" general tool joints and also covering special-purpose drill pipe tool joints independently developed by the Company, such as those with sour services, arctic service double shoulders, special thread, etc. In compliance with ISO9001 and API Q1 quality management system, the Company adheres to the management tenet of "quality first, users foremost". Based on long-term proven practice and user feedback, it has set up a complete and effective quality management and product quality assurance system, supported by advanced R&D facilities for inspection and new product R&D. In this way, its new products are well received and recognized by an increasing number of users inside and outside China and hence the Company keeps growing.

        聯(lián)系方式地址:江蘇省無錫市新吳區(qū)梅村錫泰路217號
        電話:0510-85366075
        傳真:0510-85366058
        郵編:214112

        特级毛片a级毛片免费播放 | 国产精品无码制服丝袜| 国产午夜片| 久久丁香五月| 在线亚洲欧美| 无码国产精品一区二区小说| 久久精品一区二区无码Av无| 国产无遮挡| 欧美激情综合一区二区三区| 伊人无码中文| 国产成人精品无码一区二区三区免费| 无码高清不卡在线观看| 无码人妻丰满熟妇区免费| 国产免费人成视频在线观看| 国产强奷伦奷片| AV在线天堂麻豆| 欧美精品黑人粗大视频| 欧美人与动性XXXXX杂性| 在线A亚洲老鸭窝天堂| 久久久久亚洲AV成人片乱码| 国产AV永久精品无码| 亚洲精品TY久久久久久久久久| 国外精品视频在线观看免费| 偷无码一区二区蜜桃AV| 99久久久国产精品免费蜜臀| 男人狂桶女人出白浆免费视频| 欧美《熟妇的荡欲》未删减版| 久久国产综合精品swag蓝导航| 亚洲国产成人精品无码区二本| 日本三级欧美三级人妇视频黑白配| 天天躁日日躁狠狠很躁| 日韩av无码中文字幕| 亚洲国产婷婷香蕉久久久久久 | 国产精品国三级国产AV| 国产乱人伦偷精品视频不卡| 一女被多男玩喷潮视频| 国产丝袜足交视频| 91正在播放极品白嫩在线观看| 四虎永久在线观看免费网站网址| 污网站免费| 人妻无码人妻有码中文字幕|