They traded in gold, ivory and copper for cloth and glass.
Don't use screens constructed with aluminum, copper, or metal cloth covered with zinc or cadmium.
In this work, nanoporous nickel-copper sulfide on carbon cloth was successfully prepared via sulfurizing the nickel-copper carbonate hydroxide precursor through an anion exchange reaction.
With the return of relative calm, trade in cloth, animals, copper ware, and other goods increased rapidly.
(d) Copper winding covered with a cloth.
The taste for ivory and other exotic goods has lured traders, travellers and explorers along this corridor since the 18th Century, when caravans carried cloth and beads, copper and spices, ivory and slaves across the same plains and hills now visited by tourists.
Indian merchants brought various goods to China, including tortoise shell, gold, silver, copper, iron, lead, tin, fine cloth, woolen textiles, perfume and incense, crystal sugar, pepper, ginger, salt, coral, pearls, glass items, and Roman wares.
Swab the barrel with a cloth soaked in copper solvent.
Masks employed in this mystery play are made of papier-mâché, cloth, and occasionally gilt copper.
Its economy is based on mining (copper and gold), agriculture, and manufacturing (cloth, leather, and straw hats); tourism is also important.
