Qualification certificate
Qualification certification
Thank you letter from Sinopec Tianjin Branch in 2009
Thank you letter from Zhong'an United Coal Chemical in 2022
2023 China Petroleum Refining and Chemical Thank You Letter
2017 CNOOC Huizhou Petrochemical Thank You Letter
2019 CNOOC Huizhou Petrochemical Thank You Letter
Thank you letter for the 2020 China Russia East Gas Pipeline Project
Thank you letter from the second project department of Dingnan Pipeline Company in 2023
2019 China Petroleum Pipeline Thank You Letter
2017 China Petroleum Pipeline Material and Equipment Commendation Letter
Thank you letter from China Petroleum West East Pipeline Company in 2016
2009 China Petroleum Tianjin Branch Thank You Letter
TEL: +86-317-6331988/6330898/0931
TEL: +86 132 9270 7679
E-mail: hengtonggp@163.com
Address: Zhenggang Industry Park, Yanshan County, Hebei Province, P.R.China
TEL: +86-317-6331988/6330898/0931
TEL: +86 132 9270 7679
E-mail: hengtonggp@163.com
Address: Zhenggang Industry Park, Yanshan County, Hebei Province, P.R.China
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