Concrete is a stone mixed with water, sand, stones and some chemical additives, if necessary, in a particular proportion. Foaming occurs when concrete is made due to agitation. The appearance of a large amount of foam will lead to a decrease in the s…
At 23:36 local time on the 16th (22:36 Beijing time on the 16th), a strong earthquake occurred in the waters near Fukushima Prefecture, Japan. Early this morning, the Japan Meteorological Agency revised the magnitude from 7.3 to 7.4. So far, the eart…
Nano-iron is a superfine iron ion laser beam through variable current equipment fumed, product powder uniform particle size, narrow particle size distribution, high purity, low carbon, sulfur, phosphorus and other harmful elements.Purity>99.9% Abo…
Dysprosium Oxide is a white, powdery substance with chemical formula Dy2O3. Magnetic properties are stronger than high-speed oxidized iron. Insoluble in acid and alcohol. Mainly used in lighting. Purity: 99.9%Particle Size: -100mesh About…