A lot or building may be occupied by the following principal uses:
(a) Any manufacturing use not listed as a provisional or conditional use in this district, except the following uses which shall be prohibited:
(1) Demolition dump.
(2) Disposal, reduction or dumping of dead animals or offal.
(3) Explosives manufacturing.
(4) Fertilizer manufacturing.
(5) Paper mill.
(6) Production of Portland cement.
(7) Radioactive waste storage or disposal site.
(b) Public utility or public use.