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![]() HEC is very active with the management, engineering and design of oil refining and petrochemical projects at home and abroad. In the possession of 4 state patents and 2 kinds of proprietary technology, we are an accepted expert in catalytic cracking and desulfurization environmental protection. HEC holds qualifications issued by the Construction Ministry of China and relevant departments including: a) Class [Details] |
Company QR code Anytime Anywhere Mobile |