1. All kinds of ship main engine and auxiliary engine repair, maintenance. 2, main auxiliary exhaust turbine repair and maintenance. 3. Deck machinery repair and maintenance. 4. Various types of pump and auxiliary machinery repair and maintenance. 5. All kinds of electrical equipment and communications navigation equipment repair inspection 6. All kinds of pipeline system renew. 7. Oil tank cleaning. 8. Spare part supply and store supply. 9. Hull plate thickness measurement, repair and renew. 10. All kind of boiler repair and inspection. 11.Air conditioning and refrigeration repair inspection. 12. Various heat exchanger repair, maintenance..