We have provided a rented freezer for B2B use in Italy.The client is requesting a manual in the Italian language as a legal requirement. Is this correct ?

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Customer has quoted The legislative Decree of 6 September 2005, n. 2006 as relevant, and Please inform the supplier of the freezer of its obbligations derving from the above referred legislative decree and of the possible administrative sanctions for it in the event of violation of its obligations