Abstract: The high pressure blast furnace gas and coke-oven gas mixture used for making red copper casting,bronze casting, aluminum casting, zinc base alloy and some brass casting, is introduced.

 
  • 文摘:介紹了用高爐、焦爐混合高壓煤氣作為燃料,生產(chǎn)紫銅件、錫青銅件、鑄鋁件、鋅基合金及部分黃銅件。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan