📁 材料
Materials are the raw stuff used in manufacturing and industry.Some examples are steel, fibers, glass, and plastics.This category lists manufacturers and distributors of raw materials.
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条目 (4+)
Washington Post - The Geisha Stylist Who Let His Hair Down
http://www.washingtonpost.com/wp-dyn/articles/A6563-2004Aug16.html
Washington State University College of Engineering and Architecture
http://www.cea.wsu.edu/