Imports of Refractory bricks etc〉50% alumina Al2O3, silica SiO2 or mixture etc (HS:690220) by Country in May. 2012 provides the latest data of China's import of Containing by weight more than 50% of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products from various countries around the world including monthly total imports volume, imports amount and comparison with the same period. CBC Metal Network China Silicon Network provides you with the latest and most accurate market Containing by weight more than 50% of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products import and export data information to help you grasp the Silicon market import and export dynamics, in-depth understanding of China's position and trend in the global Containing by weight more than 50% of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products trade.