In recent years, in order to adapt to the new development of internal combustion engines, there h ......

There is a shortage of natural rubber resources in China, and two-thirds of them rely on imports ea ......

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Natural single crystal diamond is an anisotropic single crystal. With a hardness of HV9000-10000, it ......

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As we all know, heat pump compressors are like the heart of air energy water heaters. Compressor t ......

An insider of the Dongfeng Motor Strategic Planning Department stated that Dongfeng Motor's â ......