● HOME ＞ English MAIN SUPPLY LIST OF CATHODIC PROTECTION SYSTEM IN OVERSEAS DIVISION ↑Click on image for larger view. Tank Bottom Plate protected by cp system NAKABOHTEC CORROSION PROTECTING CO.,LTD. 2-5-2 Shinkawa Chuo-ku Tokyo 104-0033 Japan Overseas Division Telephone; +81-3-5541-5812 Facsimile;+81-3-5541-5832