Our company is a professional manufacturer which produces series of fine-grained structure graphite products…The annual production capacity is 20 thousand tons.

我公司是生产结构石墨系列产品的专业厂家，年生产能力2万吨。

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The results show that, after laser surface processing, a melt layer with cellular-dendrite structure is formed, which could transform into very fine-grained structure during the annealing treatment.

结果表明，激光处理后试样表面熔凝区的组织主要为胞状枝晶组织，经后续热处理可转变为细小的等轴晶粒组织，并形成了良好的超塑连接条件。

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They showed many similarities, he said, including the spherules, calcium sulphate veins and fine-grained structure.

BBC: Opportunity and Curiosity find similar rocks on Mars