F部：機(jī)械工程；照明；采暖；武器、爆破(Mechanical Engineering；Lighting；Heating；Weapons；Blasting)專利技術(shù)交易

因?qū)＠夹g(shù)交易數(shù)據(jù)實(shí)時(shí)更新，詳情咨詢：0830-2363746