Not including the raid suit the exoskeleton gives the vinsmoke metal bodies. That metal specifically being iron aka iron bodies similar to tekkai. If someone has the raw translations even better
Queen not having external armament to coat his blade in haki not being able to cut through Sanji’s iron body when he wasn’t even using haki
While iron alone isn’t the most impressive it’s still pretty damn good especially when haki is stacked
Vergod
Wucci
Hell even Garp himself is known as iron Garp
And obviously Sanji
As for why they don’t translate it to iron in the English? Idk I made a thread about how the English fucks up translating when it comes to metal, iron, and steel
They couldn’t even properly translate Sanji’s attacks so it’s not surprising
Queen not having external armament to coat his blade in haki not being able to cut through Sanji’s iron body when he wasn’t even using haki
While iron alone isn’t the most impressive it’s still pretty damn good especially when haki is stacked
Vergod
Wucci
Hell even Garp himself is known as iron Garp
And obviously Sanji
As for why they don’t translate it to iron in the English? Idk I made a thread about how the English fucks up translating when it comes to metal, iron, and steel
Just making it its own thread to make it an easy find

The difference between iron and steel
Daz was made of iron
More
Even more
East blue zoro can’t cut iron bars
Don krieg’s armor is made from a specific steel
Little garden Zoro couldn’t cut Mr. 3’s iron hard wax
More Zoro saying he needed to cut iron to cut daz
Luffy breaking steal and Zoro cutting iron
Zoro being able to cut stone and iron but not steal post kaku fight
The pacifista being made of even harder material than iron like steel
If the manga isn’t proof enough
Number 6 explains the inconsistency in the anime
https://gamerant.com/one-piece-inconsistencies-introduced-by-anime-filler-arcs/
And more evidence from someone who reads Japanese
https://www.fanverse.org/goto/post?id=66937700
Now all together
Zoro learned to cut iron against daz with lion song
Zoro still struggled against Ohm’s iron whip while knowing how to cut iron because he could only do it with lion song. Him deflecting the iron whip instead of straight up cutting it
Zoro fights another iron man with Kaku and while he could get through his iron body technique with LS Kaku didn’t give him the opportunity
Zoro could damage but couldn’t cut kuma’s pacifista body with LS because it was made of steel not iron
Same with the pacifista
Post timeskip tho? After zoro actually learned to use haki shit became a lot easier
Can slice through a pacifista himself
Can casually slice through thick iron like nothing
The first time we see him using his new upgraded lion song aka death lion song being against the red punk hazard dragon

The difference between iron and steel
Daz was made of iron
More
Even more
East blue zoro can’t cut iron bars
Don krieg’s armor is made from a specific steel
Little garden Zoro couldn’t cut Mr. 3’s iron hard wax
More Zoro saying he needed to cut iron to cut daz
Luffy breaking steal and Zoro cutting iron
Zoro being able to cut stone and iron but not steal post kaku fight
The pacifista being made of even harder material than iron like steel
If the manga isn’t proof enough
Number 6 explains the inconsistency in the anime
https://gamerant.com/one-piece-inconsistencies-introduced-by-anime-filler-arcs/
And more evidence from someone who reads Japanese
https://www.fanverse.org/goto/post?id=66937700
Now all together
Zoro learned to cut iron against daz with lion song
Zoro still struggled against Ohm’s iron whip while knowing how to cut iron because he could only do it with lion song. Him deflecting the iron whip instead of straight up cutting it
Zoro fights another iron man with Kaku and while he could get through his iron body technique with LS Kaku didn’t give him the opportunity
Zoro could damage but couldn’t cut kuma’s pacifista body with LS because it was made of steel not iron
Same with the pacifista
Post timeskip tho? After zoro actually learned to use haki shit became a lot easier
Can slice through a pacifista himself
Can casually slice through thick iron like nothing
The first time we see him using his new upgraded lion song aka death lion song being against the red punk hazard dragon
Idk how common the knowledge is so maybe most of yall already know but until recently i honestly never really realized that oda actually had a system going on with sanjis attacks other than random French words
Im pretty sure we all know at least that sanji's "normal" attacks are based on just where hes specifically hitting someone. For example the attack ima show off collier = neck
Collier mistakenly translated to collier coup but is just the most basic version
Collier shoot a stronger version of the normal collier kick translated as collier coup
Finally hell memories which seems like its own separate thing tbh with it not exactly being part of dj. Also seemingly just a single attack not a form
Im pretty sure we all know at least that sanji's "normal" attacks are based on just where hes specifically hitting someone. For example the attack ima show off collier = neck
Collier mistakenly translated to collier coup but is just the most basic version
Collier shoot a stronger version of the normal collier kick translated as collier coup
- Collier and most his basic body part named attacks are his weakest and usually used to combo into eachother ending with a special kick by the end
- < shoot versions are attacks specifically made to do as much damage as he can to that specific body part
- < diable jambe + shoot the same as before just with the dj boost
- < diable jambe strike a new thing post timeskip even stronger shoot with his flames engulfing his whole leg this time and not just the lower end
Finally hell memories which seems like its own separate thing tbh with it not exactly being part of dj. Also seemingly just a single attack not a form