tian rong zhang wang zhu (3 resultados)

Hardcover. Condición: New. HardCover. Pub Date: 2007 Pages: 1131 in Publisher: Central South University Press China Aluminum rapidly. primary aluminum production reached 5.5 million tons in 2003. more than 6 million tons in 2004 Annual Meeting. to become the world's primary aluminum producing countries. And a big country. Beginning in 2002. China became a net exporter of primary aluminum. However. the aluminum material. especially aluminum sheet. strip. foil. there are still a large number of imports. in addition to th.

paperback. Condición: New. Language:Chinese.Pages Number: 11997 Publisher: Central South University Press Pub. Date :2002-05. Copper is an ancient metal. The Chinese nation has more than five thousand years of civilization history of copper and copper development and use of technology in ancient China. an important part of civilization. Cast bronze knife unearthed the earliest. is the production of China 4800 years ago. Longshan Culture period has been able to manually smelting copper and copper alloy. and mastered the.

paperback. Condición: New.