Ask about the judgment of the concept of patent?

When judging novelty, the specific lower concept affects the upper concept, namely:

(1)A does not affect the novelty of B.

(2)B affects the novelty of a.

Considering the scope of protection when judging infringement, the scope of protection of the upper concept is obviously greater than that of the lower concept, namely:

2.( 1) Yes

? (2) Depending on the metal, only copper can be used.