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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.
    Add:Management Committee building,shengli industryzone,Xicheng, Dongying City zone,Shandong,China
    Tel:+86-546-7755028
    Fax:+86-546-7718870
    E-mail:[email protected]

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  • 人民网历届人大政协会议资料库 2019-09-05
  • 赵世炎:信仰之火永不灭 2019-08-28
  • 江西乐平工业园 红色污水在管委会门前直排 2019-08-24
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