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    • 为什么叫沙尔克04 www.dfhai.com

      Details: Structural features of slingshot substructure:  1.The drill floor and the equipment on it can be installed at a low position; and the derrick is erected up to vertical position while the drill floor k...
    • Details: Major features of “K” type derrick:  1.Section form: “ K ” type, i.e. front opening.  2.Lifting and lowering mode: integral.  3.Low position installation. Generally it has 4~5 sections for the derrick...
    • Details: Technical features of mechanical drive drawworks :  ?Bearings all adopt roller ones and shafts are made of premium alloy steel.  ?Drawworks positive gears all adopt roller chain transmission and negat...
    • Details: Technical features of DC electric drive drawworks:  ?Bearings all adopt roller ones and shafts are made of premium alloy steel.  ?Drawwork is panel-type, totally enclosed and internal speed change rol...
    • Details: Technical features of AC variable frequency electric drive drawworks :  ?The main components of drawworks are AC variable frequency motor, gear reducer, hydraulic disc brake, winch frame, drum shaft a...
    • Details:   Technical features:  ?The ward off rope rod and rope guard board prevent the wire rope from running out or fall of the sheave grooves.The sheave grooves are quenched to resist wear and extend its se...
    • Details: Technical features:  The sheave grooves are quenched to resist wear and extend their service life.  The sheaves and bearings are interchangeable with those of their matching crown block.Technical para...
    • Details: Technical features:  ?The specific structure of the barrelallows the engine oil in it and the hook body’s cavity to possess favorable hydraulic buffering function.  ?The braking mechanism enables the ...
    • Details:   YG model hook block assembly is one of the hoisting tools in oil drilling and servicing. It’s mainly used to suspend and trip drill pipe string, replace bits, and run casings. It can also be used to...
    • Details: Technical features:  ?With optional double pin alloy steel sub.  ?The wash pipe and packing device are box type integral structures and easy to replace.  ?The gooseneck and the rotary hose are connect...
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    Dongying Haixin Petroleum Equipment Co. Ltd.
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    Tel:+86-546-7755028
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    E-mail:[email protected]

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  • “一带一路”机遇下本土设计师“走出去”才是硬道理 2019-08-11
  • 学者:“首相官邸主导”决策过程促成安倍长期执政 2019-08-08
  • 探寻深圳的创新基因(壮阔东方潮 奋进新时代·庆祝改革开放40年) 2019-08-06
  • 马克思的每个人全面而自由发展,是人的最高需求层次理论。 2019-08-02
  • 低成本拿地、高品质造房,解析泰禾热销的两大利器 2019-08-02
  • 候选企业:中国东方航空集团公司 2019-07-31
  • 美俄掀起新一轮互相制裁风波。 2019-07-29
  • 不能让孩子输在起跑线上?来看看如何科学合理早教 2019-07-28
  • 云南女子饲养小猴子5年 竟是国家一级保护动物熊猴 2019-07-28
  • 2016人民日报两会特刊“全息图” 2019-07-24
  • 《道高一丈》定档8月24日 兄弟情仇触发冰火交锋 2019-07-20
  • 拂去历史尘埃 还原唐代人的实态生活brbr——刘显波和他的《唐代家具研究》 2019-07-20
  • 刘延东:把孔子学院办成中南人民心灵的“彩虹桥” 2019-07-19
  • 西安紫云溪小区深夜有人竟高空扔粪便 律师:违法行为 2019-07-15
  • 《泄密者》发布吴镇宇特辑 复古痞子警探寻真追凶 2019-07-09
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