Shaped into pellets convenient for shipping, copper and tin ingots were the raw material for making the metal which defines the Bronze Age.

铜和锡锭是制作金属的原材料，它们被磨成小球型可以便于运输，而那个时代也因金属而得名。

youdao

Nc Flame cutting machine may cut arbitrary shape metal, the automaticity is high, saves the manpower, reduces raw material consumption, saves the cost, enhances the economic efficiency.

可对金属板材进行平面定尺下料和任意形状的切割，自动化程度高，节省人力，降低原材料消耗，节约成本，提高经济效益。

youdao

Metal material bending test is an important item when raw materials come to factory in boiler and pressure vessel manufacturing trade.

金属材料的弯曲试验是锅炉压力容器制造行业进行原材料入厂检验的一项主要检查项目。

youdao

The materials then goes through a multi-tiered supply chain where they are sold and possibly resold several times before reaching facilities that specialize in either cutting and polishing gemstones and diamonds, or turning raw precious metal into jewelry-grade material.

FORBES: All that Glitters is Beauty and Business