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BASF SEPetroChina Co., Ltd.Idemitsu Kosan Co., Ltd.Exxon Mobil Corp.Mobil Corp.Standard Oil Co.Osaka Gas Co., Ltd.Saudi Arabian Oil Co.Schlumberger Technologies, Inc.Standard Oil Co.Tokyo Gas Co., Ltd.China National Offshore Oil Corp.China National Offshore Oil Corp.Schlumberger Canada Ltd.JSWChina General Nuclear Power Corp.China General Nuclear Power Corp.Chevron U.S.A., Inc.Voith GmbH & Co. KGaADuksan Co., Ltd.Dresser Industries, Inc.Dresser Industries, Inc.Beijing Yanshan Petrochemical Co., Ltd.Électricité de France SAElf Atochem SAHalliburton Co.Messer SE & Co. KGaA (Germany)Conoco, Inc.ConocoPhillipsSinopec Oilfield Service Corp.
NIPPON STEEL Stainless Steel Corp.JFE Steel Corp.NKK Corp.NKK Corp.Sumitomo Metal Mining Co. Ltd.Schlumberger Technologies, Inc.JX Nippon Mining & Metals Corp.JX Nippon Mining & Metals Corp.Baoshan Iron & Steel Co., Ltd.Baoshan Iron & Steel Co., Ltd.NIPPON STEEL Stainless Steel Corp.China National Offshore Oil Corp.China National Offshore Oil Corp.Tanaka Kikinzoku Kogyo KKTanaka Holdings Co. Ltd.Sankyo Aluminum Industry Co., Ltd.Dresser Industries, Inc.Dresser Industries, Inc.Halliburton Co.Jinchuan Group Co., Ltd.Armstrong Ceiling Solutions (Australia) Pty Ltd.Sinopec Oilfield Service Corp.Toyo Kohan Co., Ltd.thyssenkrupp Steel Europe AGUsui Co. Ltd.Senju Metal Industry Co., Ltd.Shanxi Taigang Stainless Steel Co., Ltd.CNOOC Energy Technology & Services Ltd.Shougang Group Co., Ltd.Wuhan Iron & Steel Group Corp.
Halliburton Co.CNPC Bohai Drilling Engineering Co. Ltd.CNPC Bohai Drilling Engineering Co. Ltd.China Oilfield Services Ltd.Varco International, Inc.Daido Kogyo Co., Ltd.Camco International, Inc.Dril-Quip, Inc.C. & J. Clark International Ltd.Anton Oilfield Services (Group) Ltd.Trican Well Service Ltd.DynaEnergetics GmbH & Co. KGRPC, Inc.Innovex Downhole Solutions, Inc.Gyrodata, Inc.Valaris PlcTuboscope Vetco International, Inc.Centek Ltd.Premier Coil Solutions, Inc.Calfrac Well Services Ltd.Bilco Tools, Inc.Stimline ASAnTech Ltd.Magnum Oil Tools International Ltd.Rosneft Oil Co.Wenzel Downhole Tools Ltd.FHE USA LLCHydra-Rig, Inc.Beijing Yilong Hengye Petroleum Engineering Tech Co., Ltd.Integrated Production Services, Inc.
Analog Devices, Inc.Areva NP SASAreva NP SASAVL List GmbHAmpex Corp.Zhejiang Chint Electrics Co., Ltd.United States Surgical Corp.Teradyne, Inc.Draper, Inc.Mpac Group PlcBL Technology, Inc.EMI Ltd.Stewart-Warner Corp.Chino Corp.Aichi Tokei Denki Co., Ltd.DKK-TOA Corp.IDEXX Laboratories, Inc.Showa Aircraft Industry Co., Ltd.Smiths Group PlcVarco International, Inc.Bruker BioSpin Corp.Chongqing Chuanyi Automation Co., Ltd.Chongqing Chuanyi Automation Co., Ltd.Technology Partnership PlcOVAL Corp.Shanghai Electrical Apparatus Research Inst. (Group) Co. LtdHach Co.Toyo Kanetsu KKEwatt Technology Co. Ltd.Ewatt Technology Co. Ltd.
Halliburton Co.Varco International, Inc.Baker Hughes Pressure Control LPSubsea Technologies Group Ltd.Huf Baolong Electronics Bretten GmbHAMTROL, Inc.SR Engineering KKTuboscope Vetco International, Inc.Kinetic Pressure Control Ltd.TI Automotive Fuel Systems SASPremier Coil Solutions, Inc.Control Flow, Inc.VAG Water Systems (Taicang) Co., Ltd.Intelligent Wellhead Systems, Inc.BPR Medical Ltd.Kwikot Ltd.ADS Services LLCSPM Oil & Gas PC LLCCudd Pressure Control, Inc.Drexel Oilfield Services, Inc.Asco Numatics GmbHIntegrated Production Services, Inc.Venturie ASCactus Wellhead LLCTescom Europe GmbH & Co. KGProgressive Technologies, Inc.Porter Instrument Co., Inc.Elmar Services LtdIRI International Corp.Quartzdyne, Inc.
Samsung Heavy Industries Co., Ltd.DAEWOO SHIPBUILDING & MARINE ENGINEERING Co., Ltd.China National Offshore Oil Corp.China National Offshore Oil Corp.Halliburton Co.Petróleo Brasileiro SAChina Oilfield Services Ltd.Vetco Gray, Inc.Varco International, Inc.Oceaneering International, Inc.Vallourec SADril-Quip, Inc.National-Oilwell, Inc.Yantai CIMC Raffles Offshore Ltd.Transocean Sedco Forex Ventures Ltd.Bluewater Energy Services BVScientific Drilling International, Inc.Twister BVTrican Well Service Ltd.Anadarko Petroleum Corp.Maersk Drilling A/SInnovex Downhole Solutions, Inc.Valaris PlcBergstrom, Inc.Centek Ltd.Worldwide Oilfield Machine, Inc.MODEC, Inc.Japan Drilling Co., Ltd.Stena Drilling Ltd.Calfrac Well Services Ltd.
KYOCERA Chemical Corp.The Dow Chemical Co.Mitsui Chemicals, Inc.3M Co.Fraunhofer-Gesellschaft eVShowa Denko Materials Co. Ltd.Resonac Corp.Rohm & Haas Co.TOTO Ltd.DIC CorporationSumitomo Bakelite Co., Ltd.JSR Corp.W.R. Grace & Co.Nissan Chemical Corp.Ciba Specialty Chemicals Holding, Inc.Lam Research Corp.PPG Industries Ohio, Inc.Eastman Chemical Co.JX Nippon Mining & Metals Corp.Mitsubishi Paper Mills Ltd.JX Nippon Mining & Metals Corp.ULVAC, Inc.SCHOTT AGKansai Paint Co., Ltd.TOKYO OHKA KOGYO CO., LTD.NOF Corp.Hon Hai Precision Industry Co., Ltd.Kennametal, Inc.Toyo Ink SC Holdings Co. Ltd.Angang Steel Co., Ltd.