The meaning of calcium carbonate
Data ：2020-07-13 17:37View ：
Vonke Co., Limited, established in 1999, is the leading manufacturer and supplier of chemicals in China. With rich mineral resources in, we are a group company, under which we have two factories, one produces industrial chemicals like calcium carbonate,titanium dioxide, iron oxide,etc. and the other produces agricultural chemicals like liquid ammonia,ammonia nitrate, fertilizers, etc. for more than 20 years, we can offer best quality, prompt delivery, competitive price and professional service....