93/705313 DC被替代
En 4123 Aerospace Series. Shank Nuts, Self-locking, In Heat Resisting Nickel Base Alloy Ni-p100ht (inconel 718), Silver Plated On Thread. Classification: 1550 Mpa (at Ambient Temp)/600 Deg.c
出版：British Standards Institution
專家解讀視頻
