Nippon Kaiji Kyokai
| Nippon Kaiji Kyokai - NKK | ||||||
| Construction | Product | Thickness (mm) | Drawing | Valid until | ||
| Plate | Stiffener | |||||
| Bulkhead | ||||||
| Steel | ||||||
| A-30 | SeaRox SL 620 | 40 | 25 | Drawing | 2022.06.27 | |
| A-60 | SeaRox SL 620 | 60 | 25 | Drawing | 2022.06.22 | |
| A-60 | SeaRox SL 640 | 2x30 | 30 | Drawing | 2022.06.29 | |
| A-60 restricted | SeaRox SL 620 | 40 | 25 | Drawing | 2022.06.27 | |
| A-60 restricted | SeaRox SL 640 | 40 | 40 | Drawing | 2022.06.29 | |
| Deck | ||||||
| Steel | ||||||
| A-30 | SeaRox SL 620 | 25 | 25 | Drawing | 2022.06.27 | |
| A-30 Type II | SeaRox SL 620 | 30 | Drawing | 2022.06.27 | ||
| A-30 | SeaRox SL 740 | 50 | 30 | Drawing | 2022.06.29 | |
| A-60 | SeaRox SL 620 | 40 | 25 | Drawing | 2022.06.27 | |
| A-60 Type II | SeaRox SL 620 | 40 | Drawing | 2022.06.27 | ||
| A-60 | SeaRox SL 640 | 40 | 40 | Drawing | 2022.06.29 | |
| Non-Combustible | ||||||
| SeaRox SL 480 | 2022.06.27 | |||||
| SeaRox SL 620-660 | 2022.06.29 | |||||
| SeaRox SL 720 | 2022.06.27 | |||||
| SeaRox SL 740 | 2022.06.29 | |||||
| SeaRox MA 720 ALU | 2022.06.28 | |||||
| SeaRox WM 620-640 / SeaRox WM 950 | 2022.06.29 | |||||
