The European Commission on Thursday proposed emergency intervention in Europe's energy markets to ease the recent sharp rise in energy prices. A much-watched proposal to cap natural gas prices was not included because of controversy.…
If the compatibility of polycarboxylate superplasticizer and cement is not good, the concrete mixture is prone to some problems, such as segregation, bleeding, greater slump loss, shorter setting time and so on, so that the concrete mixture can not b…
Due to the excellent corrosion resistance of titanium materials, titanium materials are widely used in petroleum, chemical industry, salt making, pharmaceuticals, metallurgy, electronics, aviation, aerospace, marine and other related fields.…
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