国产精华液一级毛片久久久久久久女人18,97人人添人澡人人爽超碰,中文字幕人成乱码熟女免费69,国产精品亚洲А∨无码播放不卡,亚洲不卡无码vs中文字幕

R & D Center

Automatic heat resistant steel production line

Automatic heat resistant steel production line

1) using high pressure, the casting dimension accuracy and surface roughness are higher.


2) all high degree of automation, the operator only needs to control button to check the production line, the labor intensity is low, there is no shock in the process of production, low noise.

国产精华液一级毛片久久久久久久女人18,97人人添人澡人人爽超碰,中文字幕人成乱码熟女免费69,国产精品亚洲А∨无码播放不卡,亚洲不卡无码vs中文字幕