馬丁砂-Back-fills for Tapping hole

根據出鋼條件，按不同比例選用優質鎂砂，鎂橄欖石，石英質材料，配以復合添加劑混合而成。填料具有施工簡單方便，燒結性適宜，防止鋼水滲透性強，不漂浮，自開率高，使用安全性高等特點。

Taking different high quality magnesite, forsterite, silica as raw materials according the tapping conditions, adding with complex additives.This backfill is characterized with easy installation, suitable sintering, floating resistance, high self-opening rate, good performance and safety.