📝 提交该分类网址

📁 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.

子分类

条目 (4+)

全部 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Ilsco

http://www.ilsco.com/

👍 0 详情链接

Initial Embrace

http://initial_embrace.tripod.com/

👍 0 详情链接

ITCF. Institute for Textile Chemistry and Chemical Fibers Denkendorf

http://www.itcf-denkendorf.de/

👍 0 详情链接

International Association for Hydrogen Energy

http://www.iahe.org/

👍 0 详情链接