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题目期页·活塞·赴德国马勒公司考察报告………………………………………………11铝合金熔铸技术的现状与展望—…………………··、…………………·121活塞镀锡自动机改借………………””……··’·”·’…·”………………126铁相变质剂在铝屑铸件中的应用—…………
Title page · Pistons · German Mahler company inspection report ...................................................... 11 Current situation and prospect of aluminum alloy casting technology ..................... , ..................... · 121 Piston Tinning Automaton Borrowing .................. “” ...... ·· · · “· ’... ·” .................. 126 Iron phase modifier in aluminum Application of chip casting - ............