DNV-GL, American Bureau of Shipping, Bureau Veritas, China Classification Society, Indian Register of Shipping, Korean Register of Shipping, Lloyd's Register of Shipping, NK, Registro Italiano Navale, Russian Maritime Register of Shipping
つり上げ荷重
2 t, 3 t, 4 t, 5 t (2.2 us ton, 3.3 us ton, 4.4 us ton, 5.5 us ton)