<正>Set up in 1996 by the actual main shareholders on the basis of 20 years experience in the refractory industry, Groupe Refraco is a medium sized and private-
In recent years,China has fully developed in output,quality,and technical advancement of refractories, and become the biggest country in refractories production
<正>YB/T384-20111Scope This standard specifies the classification,technical requirements,test methods,quality appraisal procedures,packing,marking,transportatio