但是硬质纤维板和菱镁阻燃装饰板有本质不同。

But the horniness fibreboard is different from the magnesite fire-retardant ornamental board in essence.

youdao

但是硬质纤维板和菱镁阻燃装饰板有本质不同。

But the horniness fibreboard is different from the magnesite fire-retardant ornamental board in essence.

youdao