Characteristics such as exudation, voids, brittleness and irreversible expansion were noted in the preparation of a castable high explosive such as tnt . 诸如渗油、气孔、发脆和不可回复膨胀等特性,在可铸高锰炸药如锑思锑的制造中,是很明显的。
Foundry products - pigs . iron - machinability testing 铸件-金属铸块.铸铁切削性试验