| The following materials can be used: ALUMINIUM:
from a thickness of 5/10 mm. to 12/10 mm.
STAINLESS STEEL:
from a thickness of 4/10 mm. to 10/10 mm.
COPPER:
from a thickness of 4/10 mm. to 12/10 mm
ZINC-PLATED SHEET METAL:
from a thickness of 4/10 mm. to 10/10 mm.
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