Zhengjie established in 1999,has always been committed to thechrome oxide green series of refined research and production.Wehave introduced most complete and adcanced lab and inspectiondevices,constantly improved our production technology andequipments,and satisfied clients' demand for higher qualityproducts.Our main products:Refractory grade series,ceramic pigmentseries,abrasive polishing series,fused grade series,electricalmetallurgy series,high grade hard alloy series,Etc.The certification:ISO9001:2008,ISO14001:2004.We export to Europe, the USA,Japan,Korea, the Middle East, andSoutheast Asia and have get good feedback for the quality from thecustomers.