Used in the indispensable materials of trade thermal technology equipment , such as metallurgy , glass , petrochemical industry , electricity , boiler , building materials ,etc., but as requested use the special prescription in the precinct .

• 用于冶金、玻璃、石油化工、电力、锅炉、建材等行业热工设备必备材料，可根据要求选区用特殊配方。