They are traditionally crafted by hand from materials such as clay, wood or metal.

以前他们是用粘土、木头或是金属等材料手工制作的。

youdao

Inspect mineral ore, metal, cement, glass, clay or concrete products at various stages of processing to ensure adherence to specifications.

在不同的处理阶段检查矿石，金属，水泥，玻璃，粘土或水泥产品，以确保遵守规范。

youdao

All the characters were made from moulded plasticine modelling clay on metal armatures, and filmed with stop motion clay animation.

所有的角色都用金属模型里的雕塑黏土制作，拍摄成定格黏土动画。

youdao

Over the years, the group has made stoves using mud,bricks,sheet metal,clay, ceramics and old oil drums.

VOA: special.2010.02.01

Anatsui, 68, is famed for using wood, metal, clay and recycled materials to create artworks that are heavily influenced and inspired by indigenous traditional African cultures.

FORBES: African Art Sells For Record $850,000 At Bonhams

Eaton, who had won the heat, looked behind him to see Clay banging the back of his head against a metal fence.

WSJ: Menu

Metal detector enthusiasts discovered about 3, 800 coins, dating back to the 3rd Century, in a clay pot at Bredon Hill, near Evesham, last year in June.

BBC: Evesham Roman coin hoard ?40,000 appeal launched