1)
Who manufactured the Shulchan and the other Keilim?
1.
Ramban #1 (citing the Ibn Ezra): Betzalel.
1
2.
Ramban #2: The Chachmei Leiv, cited throughout the previous Perek, also manufactured the Keilim - apart from the Aron.
1
Who manufactured the Aron, as stated in Pasuk 1.