I’m a forwarded letter; the stores of one brand;
A reaction extended; the line of command;
Hierarchy of food; to securely remand;
And the path of suppliers fulfilling demand.
Who am I?
UPDATE (1/31/15): Nothing yet? Here’s the next riddle in the series:
I’m a strong type of mail; I make bicycles go;
Connect ankle to ball; help your tires in the snow;
I’m a calculus rule; smoking eight in a row;
And I measure first downs so the referees know.
Now, who am I?
UPDATE: Riddle(s) solved by Peter Jenkins. See comments for answer.