... (soluble glass) and compound processMaterial availablestainless steel, carbon steel, Alloy Steel, WCB, Tool Steel and etc.Weight10g-200kgAccuracyclass CT4-CT7Surface roughnessup ... a pre-pouring chemical analysis, if approved then pour liquid steel into the sand shell by ladle, make sure the ... shell is filled with liquid steel and then cool off, meanwhile take the testing bar ...