无码人妻精品一区二区三区蜜桃91|日韩一区二区三区在线观看|国产成人亚洲精品乱码在线观看|中文字幕免费在线看线人动作大片,亚洲成A∧人片在线观看无码_国产精品亚洲а∨无码播放不卡_久久精品亚洲AV三区麻豆_中文字幕色av一区二区三区 ,秋霞欧美,欧美性猛交XXXX乱大交3,高清欧美性猛交XXXX黑人猛交,XX性欧美肥妇精品久久久久久,欧美日韩免费观看,欧美老熟妇又粗又大,欧美性受XXXX黑人XYX性爽 ,99久久久国产免费观看精品_国产成人精品久久亚洲高清不卡p_国产日韩欧美另类制服丝袜_日韩人妻无码专区一本二本

 

 

There are 2 automatic charging 7T cupola, 4 3T medium frequency induction furnaces, 8 1.5T medium frequency induction furnaces and 4 1t medium frequency induction furnaces.

At present, the company has 7 automatic casting production lines, including medium frequency induction melting furnace, dry electric heating pre foaming machine, numerical control mold forming machine, double hook shot blasting cleaning machine, water curtain automatic painting line and other high-precision equipment. The casting process adopts the international advanced lost foam casting technology, and has the whole process capacity of bead pre foaming, die forming, bonding combination, dip coating and drying, vibration molding, melting and pouring, cleaning and painting, etc. the annual production capacity of lost foam casting is 80000 tons, which is the largest lost foam casting production base in China.