Announcement Of An Open International Electronic Tender For The Service Titled "Collection Of Mixed And Recyclable Municipal Solid Waste In The City Of Kavala And In The Settlements Of Paleo And Nea Karvali, Washing Of Temporary Storage Of Municipal Solid Waste Of The Municipality Of Kavala, Management Of Collected Amounts Of Bio-Waste Of The Sorting At Source Network (Brown Bin) Of The Municipality Of Kavala, Operation Of The Krinion Composting Unit And Street Cleaning Services - Street Sweeping Etc. Of The Municipality Of Kavala In 2026 And 2027"