Tianjin Zhengjian Nano-Tech CO.,LTD.Tianjin Zhengjian Nano-Tech Co., Ltd. is a high-tech group company engaged in scientific research, development, production and sales. With the introduction of natural tourmaline materials and combined with dispersed nano-materials technology, biotechnology and surface finishing technology,we have developed series of high value-added products with super-strong composite effect.
At present, the company is specialized in processing nano health card,nano energy...
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