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3M Co.Eastman Chemical Co.MANN+HUMMEL GmbHDonaldson Co., Inc.Johns Manville Corp.Noritake Co., Ltd.Heinkel AGM-I LLCKURABO INDUSTRIES LTD.Industrie De Nora SpACummins Filtration IP, Inc.Fenwal, Inc.Sartorius Stedim Biotech SAAmerican Air Filter Co., Inc.KITZ Corp.Brita GmbHMAHLE GmbHMoen, Inc.Haver & Boecker oHGSmiths Group PlcStanadyne Corp.BHA Altair LLCAdvanced Technology & Materials Co., Ltd.Baldwin Filters, Inc.Hollingsworth & Vose GmbH & Co. KGMaag Gala, Inc.BLÜCHER GmbHUFI Filters SpAXylem Europe GmbHMacauto Industrial Co. Ltd.
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.China National Offshore Oil Corp.China National Offshore Oil Corp.Schlumberger Canada Ltd.JSWChina General Nuclear Power Corp.China General Nuclear Power Corp.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.Elf Aquitaine Fertilisants
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.