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Page Views: 336 Date Added: 01/08/2009 Last Updated: 06/01/2009 Expiry Date: 01/04/2028 Product/Service Details Non-magnetic drill collar It’s made from N1310 low carbonalloy-steel and forged by strict chemical analysis. By testing its mechanical properties, we can ensure the material’s hardness, toughness, impact value and corrosion resistance conform to the standard. It has favorable low-permeability and machining properties. Magnetic permeability (MPS=1×105/4πNm) max:1.010 Average value: μr ≤ 1.005 field gradient (hot spots) max: B ≤ 0.05 We have some non-magnetic drill collars with specifications of 165, 159, 121 and 105, as well as some non-magnetic short drill collar with specification of 5.5m, 4.5m and 3m. All customers (old or potential) are warmly welcome.! Look forward our early and sincere cooperation. Weigao makes worldwide friends with honest, enduring, reciprocal business styles. Please feel free to contact us at any time. Skype: maryworld162 MSN/Email:mary6121@hotmail.com Additional photos drill collar hexagonal kelly non-magnetic drill collar square kelly integral heavy weight drill pipe drill collar with slip gloove non-excavation drill pipe

Company Information (Shanxi Weigao Petroleum Drilling Tool Manufacturing Co.,Ltd)

Company Profile: Shanxi Weigao Petroleum Drilling Tool Manufacturing Co., Ltd., a private high-tech enterprise with years of history in the production of oil drilling collars, square kellies, and other products, produces series of petroleum drilling machinery， drilling tools and non-excavation drilling tools professionally. It assembles scientific research, production and marketing into a whole. In Weigao, you can find many kinds of high-precision manufacturing and inspection equipment: special numerical-control pipe thread lathes, large cylindrical lathes, large milling machines, deep-hole boring machine drilling, friction welding, heat treatment production line with medium frequency as well as variety of thread gauges, single measuring instruments, thickness gauges, hardness testers, ultrasonic flaw detectors, ballisticwork testing machines, universal testing machines with microcomputer displaying hydraulic pressure, and so on. With sophisticated production equipment, strict inspecting ways and strong technology, we have mastered the key technique in nationalizing petroleum drilling tools. API standard is implemented strictly throughout the whole process of production. Our company has already passed the Certification of Quality System ISO9001: 2000 and has obtained the product logo licenses of API SPEC 7-1 (Certificate No. 7-1-0625) and API Q1 (Certificate No. 0571), which are issued by American Petroleum Institute. Main products: 1. Kelly series with all kinds of sizes: double, triangle, square and hexagonal kellies 2. Integral heavy weight drill pipes and integral non-magnetic heavy weight drill pipes 3. Drill collars: ordinary drill collars, spiral drill collars, non-magnetic drill collars and short drill collars 4. Lifting sub and cross-over sub 5. Non-standard drilling tools of small-size 6. Non-excavation drilling tools, drill stems, short bent subs and directional bits Our products can be used in the fields of oil exploration, coal exploration, hydrogeology, non-excavation traversing, and so on. In addition, they can repair used drill stems and tools, with threads and others. Please feel free to contact us if there is something we can do for you. Look forward to our sincere cooperation!. >> More Website URL: http://www.bridgat.com/u2349