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Luoyang Zhengjie Science&Technology Industry Trade Co.,Ltd. Established in 1999, has always been committed to the chrome oxide green series of refined research and production, to satisfy clients' demand for higher quality products. We have refractory series, ceramic pigment series, abrasive series, fused series, special electrical series, etc. of chrome green series products. Through ISO9001:2008 quality management system certification, products have exported to Japan , Korea, southeast Asia, the Middle East, North America, Europe and other countries and regions.