Zhengzhou de chang abrasive materirl technology Co., Ltd. is a high-tech manufacturing firm dealing in production, r&d and sale of platelet calcined alumina powder (series of pca products). We have assembly line of advanced international level and first-rate staff, own coulter multisizer ii and other high precision quality control equipment.

In addition to being excellent as a lapping agent for silicon wafers, our products are rapid finisher of optical materials, liquid crystal displays, large screen monitor, crystal, optical glass, CRT glass bulbs, and television face plates, stainless steel and other metals. They are also ideal for microfinishing abrasive films, and for use in metal, ceramic and resin matrix composites.

Our products are provided constantly to American, European, Japanese, Korean and Chinese customers, etc.