Standard: Aluminum alloy pipe patent Number: ZL201330178575.9 Issue Date: 2014-01-01 Expiry Date: 2024-01-01 Scope/Range: Aluminum alloy pipe Issued By: State Intellectual Property Office of the People's Republic of China

Standard: ESD testing Number: GSYS201306007 Issue Date: 2013-06-27 Expiry Date: 2018-06-26 Scope/Range: Black plastic coated pipe Issued By: Esd test center in guangdong

Standard: ISO9001:2009 Number: 07612011281ROM Issue Date: 2012-10-10 Expiry Date: 2015-10-09 Scope/Range: All pipe rack system Issued By: Beijing Zhong Runxing Certificate Co.,Ltd.

Standard: Lean Pipe ROSH test report Number: SCL01G015235001 Issue Date: 2014-07-11 Scope/Range: Lean pipe Issued By: CENTER TESTING INTERNATIONAL

Standard: Metal joints ROHS test report Number: SCL01G015235002 Issue Date: 2014-07-11 Scope/Range: Metal joint for pipe rack Issued By: CENTER TESTING INTERNATIONAL

Standard: Certificate of Design Patent Number: ZL201420159242.0 Issue Date: 2014-07-30 Expiry Date: 2024-07-30 Scope/Range: Aluminum pipe joint AL-1 Issued By: The intellectual property office of the People's Republic of China

Standard: Certificate of Design Patent Number: ZL201420159489.2 Issue Date: 2014-09-17 Expiry Date: 2024-09-17 Scope/Range: Aluminum pipe joint AL-5 Issued By: The intellectual property office of the People's Republic of China

Standard: Certificate of Design Patent Number: ZL201420159490.5 Issue Date: 2014-09-17 Expiry Date: 2024-09-17 Scope/Range: Aluminum pipe Joint AL-3,AL-4,AL-6,AL-7 and AL-8 Issued By: The intellectual property office of the People's Republic of China