The foam concrete block was prepared by self-made compound protein foam agent.

以自制复合型蛋白质为发泡剂，制备泡沫混凝土砌块。

youdao

The foam concrete block was prepared by self-made compound protein foam agent.

以自制复合型蛋白质为发泡剂，制备泡沫混凝土砌块。

youdao