When shipping manufactured items, one of the things that you have to protect against is corrosion. Typically this is done by sending the part to be dipped in oil or having some other chemical that is corrosion resistant applied to it.
These are great ways to protect your parts and equipment when shipping, putting them in storage or transporting them to a worksite. However, there are some additional steps that must be performed to the part on arrival to get it ready for use. If you are looking to eliminate the usage of oils and anti-corrosive chemicals, one alternative you might pick is barrier packaging.