Production of many substandard products. Reasons are the following: 1, raw materials do analytical testing, he failed. 2, do not make a reasonable proportion. 3, can not be sufficiently exothermic and the temperature is too high and not a normal reaction. 4, can not rationally conserve. 5, do not use and indiscriminate use of admixtures. According to market demand in order to enrich the diversity of our products, inorganic Magnesite covers, based on research and development of high-strength glass fiber resin, silica sand covers its main characteristics: high strength and overall structure is superior to other products. Beautiful and artistic effect. Long service life. Better control of product quality. Precise geometry and not easily deformed. Dragon made of various plastic mold factory specialized shade covers mold, road side stone molds, cement pipe mold, plastic mold drain cover, plastic boxes and other brick mold box mold, please contact made.