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 grade series, ceramic pigment grade series, abrasive grade series, fused chrome oxide grade series, special electrical series, etc. through ISO9001:2008 quality management system certification, ISO 4001, SGS, REACH etc., certification. Products have exported to Italy, America, France, Japan, Korea, southeast Asia, the Middle East, North America, Europe and other countries and regions.