Invitation for Expression of Interest Direct Assignment of the Development Directorate of the Kavala Regional Administration concerning "Supply of three (3) standard weights of 0,5kg class M1 with case and calibration certificate, three (3) standard weights of 1kg class M1 with case and calibration certificate with Cpv: 31682210-5 Control instruments and equipment", Special Body & OEM: 03.351.1729.0003