... , rubber, plastics, FRP, artificial stone, putty and other products as filler and weight reducing agent. It can also be the excellent ... fluid in oil and gas extraction industry. Series of Products TypeColorDiameter(um)Density(g/cm3)Pressure(Mpa)T20white2-1200.203 ... . With an appropriate filling ratio, the toughness of the products, impact-resistance and surface hardness can be significantly improved. ...