Goods are ``produced for commerce'' if they are ``produced,
manufactured, mined, handled or in any other manner worked on'' in any
State for sale, trade, transportation, transmission, shipment or
delivery, to any place outside thereof. Goods are produced for commerce
where the producer intends, hopes, expects, or has reason to believe
that the goods or any unsegregated part of them will move (in the same
or in an altered form or as a part or ingredient of other goods) in
interstate or foreign commerce. If such movement of the goods in
commerce can reasonably be anticipated by the producer when the goods
are produced, it makes no difference whether he himself or the person to
whom the goods are transferred puts the goods in interstate or foreign
commerce. The fact that goods do move in interstate or foreign commerce
is strong evidence that the producer intended, hoped, expected, or had
reason to believe that they would so move. Goods produced to serve the
movement of interstate commerce within the same State are also produced
for commerce within the meaning of the Act, as explained in part 776 of
this chapter.