In 1970s, experts of CRIMM successfully synthesized diamond powders
in laboratory and a factory for manufacturing synthetic diamond
powders in commercial scale was established in 1982. At present,
CRIMM is supplying three series of synthetic diamond saw grits and
four groups of grinding grits. CRIMM's diamond powders have been
sold to more than 20 countries and regions in Asia, Europe and North
America.
Manganous Manganic Oxide
CR series highly purified manganous manganic oxide is developed
by CRIMM and manufactured by Kingray New Materials Science &
Technology Co.,Ltd. Now our group is the leading manganous manganic
oxide manufacturer in the world. Combined superior properties in
purity, high specific surface area and quality stability, CR series
products are ideal raw materials in soft ferrite applications.
Electrolytic Manganese Metal
As a subsidiary of Kingray, Guizhou Songtao Goldenland Manganese
Metal Co., Ltd. is one of leading manufacturers of electrolytic
manganese metal flakes/powders and manganese metal lumps in China.
By setting high quality standard, CRIMM's electrolytic manganese
metal products are sold well in domestic and international markets.