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T/T: A telegraphic transfer (T/T) is an electronic method of transferring funds utilized primarily for overseas wire transactions. Telegraphic transfers are also known as telex transfers, abbreviated T/T; T/Ts can also refer to other types of transfers.
L/C: An L/C at sight is a letter of credit (L/C) that is payable immediately – within five to ten days – after the seller meets the requirements of the letter of credit.
For recycling purposes, paper can be classified according to the quality of the paper fiber, and the quantity and type of ink and other contaminants included with the paper material. Fiber: Most paper is derived from wood, a complex material with two major constituents:
cellulose, the most desirable component for high quality paper. Like starch, cellulose is a long chain of sugar molecules. But while starch is easily converted back into sugar, and is thus used by both animals and plants for storing food, cellulose is much more resistant to degradation, and is used by plants to form tough structural units like stems and root fibers.
Lignin, a shorter but in some ways a more complex molecule, that cross-links the cellulose fibers, giving wood its characteristic rigidity.