Characteristics such as exudation, voids, brittleness and irreversible expansion were noted in the preparation of a castable high explosive such as tnt . 諸如滲油、氣孔、發脆和不可回復膨脹等特性,在可鑄高錳炸藥如銻思銻的制造中,是很明顯的。
Foundry products - pigs . iron - machinability testing 鑄件-金屬鑄塊.鑄鐵切削性試驗