Name: National Second-class Enterprise
Range: China
Reference: China State Department Enterprise Management Supervision Committee

Name: Bao Steel Memeber Unit
Range: Bao Steel
Reference: Bao Steel Equipment and Spare Parts Research Center

Name: Thanks Certificate by Mitsubishi Heavy Industries Ltd.
Range: Mitsubishi Heavy Industries Ltd.
Reference: Mitsubishi Heavy Industries Ltd.

Name: Director of China Hydro-Pneumatic and Seals Association
Range: China
Reference: China Hydro-Pneumatic and Seals Assocaition

Name: Member Unit of China Automotive Maintenance and Repair Trade Association
Range: China Automotive Maintenance and Repair Trade Association
Reference: China Automotive Maintenance and Repair Trade Association

Name: Pioneer Unit of Metrology
Range: Shandong Province
Reference: Shandong Provincial Quality and Technology Supervision Bureau

Name: ISO9001 Certificate
Certificate No: 0469-2000-AQ-RGC-RvA
Range: ISO9001:2000
Reference: DNV

Name: Patent Certificate
Certificate No: ZL200620080959.1
Range: China
Reference: Chinese Intelletural Property Beureau

Name: Patent Certificate
Certificate No: ZL200520081077.2
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200520082637.6
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200520083598.1
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200520124444.2
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200720018764.9
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200730014364.6
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200730014365.0
Range: China
Reference: Chinese Intellectural Property Beureau

Name: Patent Certificate
Certificate No: ZL200730014363.1
Range: China
Reference: Chinese Intellectural Property Beureau