"Materials which are highly sensitive will always need tight controls.
Some of the materials, which are supposed to look youthful, seemed cheap.
Trainers can contain leather, rubber, foam, textile, metal and other materials, which are hard to separate.
They are typically made of several materials which are difficult to recycle.
Mr. Gale of Columbia said, "We cannot comment on an individual applicant's materials, which are confidential".
Oil and raw materials, which are often priced in dollars, become more expensive.
Avoid slick materials, which are hard for inks to penetrate and can lead to smearing.
consist of various materials, which are joined together.
Composite materials, which are light and cheap, are increasingly being used to build everything from aircraft to bridges.
It consisted of examining various specimens, both dead & alive, and other materials, which are used for exhibits.
Stanford encourages the use of Public Domain materials, which are widely available on the Internet.
