[Tao inkslab] 由洮河出产的优质绿石制成的名贵砚台
澄泥砚是我国一项古老的传统工艺品，它与端砚、歙砚、洮砚并称为四大名砚。
The Cheng-ni inkstone is an old traditional Chinses technology , which is one of the " Four Fa-mous Inkston " called , with Duan , She , Tao .
洮砚洮砚洮砚