Exports of Refractory bricks etc〉50% Mg, Ca or Cr expressed as MgO/CaO/Cr2O3 (HS:690210) by Country in Apr. 2009 provides the latest data of China's export of Containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2O3 to various countries around the world including monthly total export volume, export amount and comparison with the same period. CBC Metal Network China Calcium Network provides you with the latest and most accurate market Containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2O3 import and export data information to help you grasp the Calcium market import and export dynamics, in-depth understanding of China's position and trend in the global Containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2O3 trade.