HExA Industries, Inc. mainly specializes in Casting and Machining the complex medium-sized ferrousproducts and copper parts.
海格萨工业有限公司专注于铸造和机械加工较为复杂的中小型零件.
The ortho-compound formed penta cyclic compound was more stable that the meta-compound formed hexa cyclic compound, so the reaction rate of the ortho-compound is larger.
由邻位化合物生成的五元环络合物比由间位化合物形成的六元环络合物稳定性高,反应速度快。
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