Please capitalize where necessary: these techniques have been used to convert various establishments mcdonald's of different spanish cities around a show [...]
A: These techniques have been used to convert various establishments McDonald's of different Spanish cities around a show [...]

Please capitalize where necessary: magnetic tapes, recorded, of a width > 4 mm but <= 6,5 mm (excl. tapes bearing data or instructions, sound or image recordings, and of a kind used in automatic data-processing machines)
A: Magnetic tapes, recorded, of a width > 4 mm but <= 6,5 mm (excl. tapes bearing data or instructions, sound or image recordings, and of a kind used in automatic data-processing machines)

Please capitalize where necessary: hotel esplanade, crikvenica - hotel facilities
A: Hotel Esplanade, Crikvenica - Hotel facilities

Please capitalize where necessary: exposure to numerous chemical compounds can result in an allergic contact eczema.
A:
Exposure to numerous chemical compounds can result in an allergic contact eczema.