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Hilti AGKoki Holdings Co. Ltd.Samsung Heavy Industries Co., Ltd.Makita Corp.Snap-On, Inc.Sandvik AktiebolagAlpha Corp. (Yokohama)Alpha Corp. (Yokohama)Mabuchi Motor Co., Ltd.Chicago Pneumatic Tool Co.China National Petroleum Corp. Drilling Research InstituteMetabowerke GmbHOSG Corp. (6136)Atlas Copco Industrial Technique ABVarco International, Inc.Caterpillar SARLFestool GmbHDePuy Mitek LLCCaterpillar SARLAssa Abloy Australia Pacific Pty Ltd.Harnischfeger Corp.US Synthetic Corp.Robert Bosch Tool Corp.Tornier SASGuhring, Inc.Mobiletron Electronics Co., Ltd.Miyanaga Co. Ltd.Shanghai SK Petroleum & Chemical Equipment Corp. Ltd.Henan Huanghe Whirlwind Co., Ltd.Bucyrus International, Inc.
PetroChina 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.Conoco, Inc.
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.
China National Heavy Machinery Research Institute Co., Ltd.China National Heavy Machinery Research Institute Co., Ltd.Sany Heavy Equipment Co., Ltd.Joy Manufacturing Co.Joy Manufacturing Co.Joy Global Underground Mining LLCHydril Co.Hydril Co.Varco International, Inc.Camco International, Inc.China Coal Beijing Coal Mining Machinery Co. Ltd.ABB Vetco Gray, Inc.Tone Boring Co., Ltd.Lubrizol Oilfield Solutions, Inc.Shanghai Jintai Engineering Machinery Co. Ltd.Shanghai Jintai Engineering Machinery Co. Ltd.MAN TAKRAF Frdertechnik GmbHMAN TAKRAF Frdertechnik GmbHDrillmec SpAInterwell Norway ASNational Mine Service Co.Kelamayi Keli New Technology Industrial Development Co. Ltd.National Mine Service Co.Chengdu Ouxun Technology Co., Ltd.Boart Longyear, Inc.Wuxi Jinfan Drilling Equipment Co., Ltd.Wuxi Jinfan Drilling Equipment Co., Ltd.Petreco International, Inc.Minova Australia Pty Ltd.Henan Energy Chemical Group Heavy Equipment Co., Ltd.
Idemitsu Kosan Co., Ltd.Hitachi Construction Machinery Co., Ltd.UBE Corp.Taiyuan University of TechnologyAngang Steel Co., Ltd.Xi'an University of Science & TechnologyChina Shenhua Energy Co., Ltd.China Energy Investment Corp., Ltd.Wuhan Iron & Steel Group Corp.Aluminium Pechiney SASUHuainan Mining (Group) Co., Ltd.Huainan Mining (Group) Co., Ltd.China National Heavy Machinery Research Institute Co., Ltd.China National Heavy Machinery Research Institute Co., Ltd.Sany Heavy Equipment Co., Ltd.Tokai Carbon Co., Ltd.Heilongjiang University of Science & TechnologyBeijing Shenwu Environment & Energy Technology Co., Ltd.Joy Manufacturing Co.Joy Manufacturing Co.Guangdong Zhongnan Iron & Steel Co., Ltd.SGIS Songshan Co., Ltd.China Shenhua Coal to Liquid & Chemical Co., Ltd.Tiandi Science & Technology Co., Ltd.Joy Global Underground Mining LLCBaosteel Group Xinjiang Bayi Iron & Steel Co., Ltd.Wengfu (Group) Co., Ltd.Wengfu (Group) Co., Ltd.Jinneng Holding Equipment Manufacturing Group Co. Ltd.Hydril Co.
China National Heavy Machinery Research Institute Co., Ltd.China National Heavy Machinery Research Institute Co., Ltd.Sany Heavy Equipment Co., Ltd.Joy Manufacturing Co.Joy Manufacturing Co.Joy Global Underground Mining LLCHydril Co.Hydril Co.Varco International, Inc.Camco International, Inc.China Coal Beijing Coal Mining Machinery Co. Ltd.ABB Vetco Gray, Inc.Tone Boring Co., Ltd.Rex Industries Co., Ltd.Bosun Co., Ltd.Lubrizol Oilfield Solutions, Inc.Shinhan Diamond Industrial Co., Ltd.Shinhan Diamond Industrial Co., Ltd.MAN TAKRAF Frdertechnik GmbHMAN TAKRAF Frdertechnik GmbHFriedrich Duss Maschinenfabrik GmbH & Co. KGNational Mine Service Co.Kelamayi Keli New Technology Industrial Development Co. Ltd.National Mine Service Co.Chengdu Ouxun Technology Co., Ltd.Boart Longyear, Inc.Petreco International, Inc.Henan Energy Chemical Group Heavy Equipment Co., Ltd.CLEANTEK Industries, Inc. /Old/Oilflow Solutions, Inc.
Hilti AGKoki Holdings Co. Ltd.Makita Corp.Snap-On, Inc.CNH Industrial America LLCChina National Heavy Machinery Research Institute Co., Ltd.China National Heavy Machinery Research Institute Co., Ltd.Sany Heavy Equipment Co., Ltd.Joy Manufacturing Co.Joy Manufacturing Co.Joy Global Underground Mining LLCHydril Co.Hydril Co.Varco International, Inc.Festool GmbHCamco International, Inc.Robert Bosch Tool Corp.Bucyrus International, Inc.China Coal Beijing Coal Mining Machinery Co. Ltd.ABB Vetco Gray, Inc.metabo AGTone Boring Co., Ltd.Soosan Heavy Industries Co., Ltd.Unverferth Manufacturing Co., Inc.Lubrizol Oilfield Solutions, Inc.GSI Creos Corp.MAN TAKRAF Frdertechnik GmbHMAN TAKRAF Frdertechnik GmbHDynabrade, Inc.National Mine Service Co.