Hong Kong Exports of tubes, pipes, hoses, fittings therefore (joints, elbows), of plastics to Tonga was US$76 during 2011, according to the United Nations COMTRADE database on international trade. Hong Kong Exports of tubes, pipes, hoses, fittings therefore (joints, elbows), of plastics to Tonga - data, historical chart and statistics - was last updated on May of 2024.