Our supplier replaced natural rubber with a cheaper synthetic to cut production costs this quarter.

我們的供應商本季改用較便宜的合成材料取代天然橡膠，以降低生產成本。

The client asked whether the jacket lining is cotton or a synthetic before placing the bulk order.

客戶在下大量訂單前，詢問外套內裡是棉還是合成材質。

Shipping fees for synthetics are lower because the fabric rolls weigh much less than wool.

合成纖維的運費比較低，因為布捲比羊毛輕很多。