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TIANJIN, Aug. 14 (Xinhua) -- The dangerous chemicals stored at the warehouse that exploded Wednesday night in Tianjin Port cannot be identified yet, authorities said at a press conference Friday.
"The OPCW should also consistently push for the chemical weapons destruction because this work constitutes the core objective of the Convention and the primary goal of the OPCW," added Chen.
South Africa hopes to learn from China's experience in industrialization and economic zone development, and facilitate bilateral cooperation in such areas as capacity, ocean economy and energy, he said.
As of Friday, the density of air pollutants in the core area has declined, he added.
"It took 10 years from the first proposal to the idea of DOC to the final completion of its negotiation, and it has been less than two years since the idea of COC was first raised, and already so much progress has been made, which in my view is really significant," Wang stressed.
来源：资阳报