国产精品538一区二区在线,JAPANRCEP老熟妇乱子伦视频,天干夜天干天天天爽视频,成人性做爰aaa片免费看不忠

Casting workshop:10 continuous casting lines 1900/2300mm.We adopt electromagnetic stirring technology in melting furnace to uniformize the melt composition and temperature,RHl degassing porous plug brick at the bottom of holding furnace to primarily control the Hydrogen content in molten aluminium, on-line degassing and filtration device from Mitsui which achieves degassing efficiency above 60% and filter efficiency above 90% (inclusion granularity ≥ 5μm), the Hydrogen content is controlled beneath 0.12ml/100gAl.