How to get the serial of HDD/SSD which windows are installed?

private static void GetAllDiskDrives()
        {
            var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive");
            hdCollection.Clear();
            foreach (ManagementObject wmi_HD in searcher.Get())
            {
                HardDrive hd = new HardDrive();
                hd.Model = wmi_HD["Model"].ToString();
                hd.InterfaceType = wmi_HD["InterfaceType"].ToString();
                hd.Caption = wmi_HD["Caption"].ToString();

                hd.SerialNo = wmi_HD.GetPropertyValue("SerialNumber").ToString();//get the serailNumber of diskdrive

                hdCollection.Add(hd);
            }
        }

var HDDData = hdCollection.FirstOrDefault();
HDDSerial = HDDData == null ? "NULL" : HDDData.Model.ToString() + HDDData.SerialNo.ToString();