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Shimadzu Engineering, Inc.

Unikas Industrial, Inc.

Kansai Industrial Co. Ltd.

Product Design & Engineering, Inc.

Atlas Copco Tools AB

Worstein Thermal Equipment (Tianjin) Co., Ltd.

Mark C. Allen,

Hongji Co. Ltd.

He'nan Anyang Mining Business Bureau Hongling Coal Mine

Nanjing Technical Equipment Manufacturing Co. Ltd.

Kyowa Denko Co., Ltd.