knockout core

同义词释义

1)knock-out core,嵌入心型(压铸)2)Phosphate bonded investment,热压铸入型陶瓷3)insert core,增压砂心，嵌入砂心4)collapsible core,die cast,金属心型(压铸)5)core slide,心型滑板(压铸)6)heel block,心型固定门(压铸)