There are lots of manufacture methods, but all these methods are to prepare core material first and then join them to skins.

现存的泡沫铝夹心板的制备方法很多，但均为先制备芯材再进行连接的方法。

youdao

There are lots of manufacture methods, but all these methods are to prepare core material first and then join them to skins.

现存的泡沫铝夹心板的制备方法很多，但均为先制备芯材再进行连接的方法。

youdao