国产精品被狂躁到高潮,国产麻豆剧传媒精品国产,色综合久久88色综合天天,国产做爰14XXXⅩ高潮电影,69精品人妻一区二区三区蜜桃乛
PRODUCTS

Pipe products
Pipe products Oil production machinery Castings and forgings

  The Technical Center of the company has developed new products of API and Non-API series, like High-collapse, Anti-H2S Tubing & Casing, thermal application Tubing & Casing, Drill pipe body, line pipe, special drift casing, perforating barrel, insulated tubing, super strength sucker rod, pumping unit with high strength. Many of them have been tested and evaluated by authoritative departments, and been exported to America, Russia, Middle-East, Southeast Asia etc.
  On November 28, 2007, during the centralized procurement of Tubing & Casing on CNPC Energy Ahead for 2008, the company continued to be qualified for the supply of API Tubing & Casing to all the oil fields of CNPC in 2008. The company believes that with the continuous development and application of new products and technologies, it will meet the needs of the international and domestic petroleum industry in the high-end field, effectively improve the competitiveness of the company's products, enhance the company's position in the industry, create good business performance, and maintain the company's steady, high-speed and long-term development.
  Capacity:Up to end of 2007, the capacity is that Rolling: 400,000 tons, Upsetting: 100,000 tons, Heat treatment: 200,000 tons(high grade OCTG), threading: 350,000 tons(finished tubing and casing).
  Product features:high purity, stable chemical compositions, good surface, high precision of geometric dimensions, excellent comprehensive mechanical and technological properties.
  Key equipment: the key equipment for tubing & casing production line are introduced from Europe, Japan and large-scale professional manufacturers in China. The whole process of manufacturing is controlled by computer automation equipped with professional, complete and advanced online and offline inspection and testing equipment. There are advanced automatic monitoring, temperature control system and pipe rotating quenching system with internal and external spraying water on two heat treatment lines. In 2006, a Multi-functional automatic Ultrasonic Testing Machine was imported from UK with the most advanced detection technology, including oblique and lamination inspection in addition to transverse & longitudinal inspection and full-length wall thickness.

国产99成人精品视频免费福利 | 欧美一级婬片A片免费软件 国产成人+ 8x8+高潮 | 蜜桃精品a v久久久久久 | 国产露脸精品国产探花 | 国产熟妇精品久久一级A片爽 | 亚洲AV秘 无码一区花狩 | 国产又大又黄又长又粗又硬 | 精品黑人一区二区三区久久 | 中文字幕av在线观看 | 红桃视频一区二区三区无码视频 | 国产一区二区丝袜高跟 | 欧美鲁丝亚洲精品 | 水多多成人A片在线观看播放 | 精品一区成人免费看片视频吗 | 国产精品毛片一区视频播 | 免费中文字幕日韩欧美 | 成人片黄网站久久久免费 | 把女人弄爽A片户外直播 | 一级a毛一级a看免费视频 | 欧美性高朝爽爽阴性 | 国产精品伦子伦露脸 | 国产ChineseHD天美传媒久 | 在线免费观看国产视频 | 免费一级a毛一级a看免费视频下载 | 精品久久久久久久久久无码色情 | 揉BBB搡BBB搡BBB| 在线观看欧美黄无码 | 国产精久久 网站漫画 | 国产suv精品一区二区6 | 91在线精品无码秘 竹菊 | 复古欧美性爱在线观看 | 96国产揄拍国产精品人妻 | 91精品国产一区二区三区香蕉 | 久久久久久成人毛片免费看 | 精品一区二区三区蜜臀 | 免费欢看自慰喷水www久久久 | 另类老妇性BBwBBw | 影音先锋AV无码男人专区 | 国产与黑人一级A片免费 | 特级西西人体444www高清 | 特级西西人体444www高清大胆 |