1,used in Iron ditch, slag ditch, residue iron ditch 2, good quality ... ×24h≥2.5Mpa1450°C×2h≥4.5Mpatwo, the matters needing attention:1 the castable to bake for 4 hours, only applies to more ... used within the material, such as the use of dry hair, can be mixed with water, does not affect the use of performance. trough castables for the blast ...