北京发明

Beijing Invention Biology Engineering &amp New Material Co., Ltd. (北京发明生物工程技术有限公司新材料有限公司（Beijing invention) is a joint venture(China and USA) set up in 1993 approved by Beijing Economy &amp Trade Committee. 北京发明）是由北京经济技术合作局批准于1993年成立的中美合资企业。贸易委员会。Beijing invention graphite factory mainly develops and produces middlecarbon graphite, high Purity graphite, expandable graphite, sulfur- less expandable graphite, flame-retardand graphite material and graphite products. 北京发明石墨厂主要开发生产中碳石墨，高纯石墨，可膨胀石墨，无硫可膨胀石墨，阻燃石墨材料和石墨产品。In recent years, our company have developed fireproofing and flame retardant expandable graphite, The fireproofing and flame retardant graphite that we produced is the products with lowest initial temperature of expansion and the largest expansion rate and small for far among the same products in China.近年来，我公司开发了防火，阻燃膨胀石墨，生产的防火，阻燃石墨是初始膨胀温度最低，膨胀率最大，在国内同类产品中规模较小的产品。