00563nam a22001697a 4500 11668 11668 201019b 1992 ||||| |||| 00| 0 eng d 623.82 NKK Nippon Kaiji Kyokai Rules and regulations for the construction and classification of ships Japan Nippon Kaiji Kyokai 1992 ix,1120p. "Includes major changes on the rules and effective dates, Appendix and Index". Welding Fire protection, detection and extinction Submersibles BK 0 0 ddc 0 623_820000000000000_NKK 0 NFIC 13724 MU MU GEN 2020-10-19 623.82 NKK LBSD403 2025-03-17 BK Column - 19