Using the above analogy, the supply chain can be considered the entire chair, while procurement and sourcing are parts of the chair. Procurement Procurement is the process of getting the goods and/or services your company needs to fulfill its business model.
The use of street address meaning just the line with number and street name is (valid) jargon usage within a technical industry, but it's not so commonly understood that way by the general public.
These are numbers: 1234567890. It means that the number part of the street address must be written in numbers, not alphabetic letters. For example, if you are looking for 1245 Maple Street, you would put the numbers, 1245, in the block for the numbers.