[使用: 工作台]

Polished Dolerite * 6

↓

Polished Dolerite Stairs * 4

[使用: 切石机]

Polished Dolerite * 1

↓

Polished Dolerite Stairs * 1

[使用: 切石机]

Dolerite * 1

↓

Polished Dolerite Stairs * 1