1878年德国人发明板式换热器，并取得专利。
公司自有科研中心与加工基地，产品已通过ISO9001：2000质量体系认证，并取得多项专利。
The company innate scientific research center with processes the base, the product already through the ISO9001:2000 quality system authentication, and obtains many patents.
在生产和研发方面，我们已取得多项技术突破，并获得了多项发明专利。
In the production and development, we have made many technology breakthroughs, and obtained many invention patents.
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