The article introduces raw materials of fly ash brick, production process and control key points.

介绍粉煤灰制砖的原材料、工艺过程及生产控制要点。

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Corundum brick and chrome-corundum brick are the key refractories for gasifier and reaction furnace in petrochemical industry.

刚玉砖及铬刚玉砖是石化行业造气炉和反应炉的关键耐火衬里材料。

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The porous plug brick is the key component for bottom blowing technique in UHP EAF. The application of domestic porous plug brick to UHP EAF was introduced.

透气砖是超高功率电弧炉底吹技术的关键元件，介绍国产透气砖在超高功率电炉上的应用情况。

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Armored vehicles patrol Srinagar's center, and brick sentry boxes and checkpoints stand at key street corners.

CNN: ASIANOW - TIME Asia

Following excavations in the early 20th century, European archaeologists claimed key features such as the remains of the famous Ishtar Gate -- the glazed brick gate decorated with images of dragons and aurochs, built in about 575 BC by order of King Nebuchadnezzar II as the eighth gate to the inner city.

CNN: Bringing Babylon back from the dead

Though many pundits have predicted the death of traditional brick-and-mortar retailers for selling games, PopCap says those outlets have been a key part of sales.

FORBES: Bejeweled 3 Coming To Stores And Web Portals In December