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

        亚洲熟妇无码一区二区三区 | 无码专区人妻系列日韩精品| 夫妻免费无码V看片| 久久免费激情视频| 免费的美女色视频网站| 中文毛片无遮挡高清免费| 韩国19禁无遮挡啪啪无码网站| 中文字幕无线码一区二区| 亚洲AV无码不卡国产精品| 久久成人午夜| 日本精品视频在线| 日木av无码专区亚洲av毛片| 国产人妖视频一区二区| 欧美牲交a欧美牲交aⅴ一| 无码av免费网站| 无遮掩60分钟从头啪到尾| 俺去俺来也在线www色官网| 久久综合伊人77777麻豆| 把腿扒开让我添30分钟视频| 欧美高清在线精品一区| 国产精品免费大片| 日本欧美视频在线观看三区| 免费无码久久成人网站入口| 欧美精品一区二区在线精品| 久久黄色网站| 91资源在线观看| √天堂中文官网8在线| 日本国产欧美| 另类小说自拍| 欧美一区视频在线| 99ri国产精品| 乱色精品无码一区二区国产盗| 久久国产劲暴∨内射| 亚洲国产精品久久久久制服| 久久精品丝袜高跟鞋| 久久精品国产网红主播| 欧美人与动xxxxz0oz| 中文字幕人妻无码专区| 中文成人无字幕乱码精品区| sm调教论坛一区| 久久久久亚洲av无码专区首jn |