Songlin International Corporation Songlin International Corporation SIC import export sell ETP TFS BP GI CR coil sheet steel metal electrolytic tinplate tinfree black plate galvanized cold rolled Welcome to Songlin International Corporation. Songlin is an American exporter/importer selling Electrolytic Tinplate ETP, Tin Free Steel TFS, Black Plate BP, Galvanized GI, and Cold Rolled CR coils sheets.