Just a small idea:
Some mods will add doors made of the metal they add, such as The Betweenlands, Ender IO, etc. (damn it, why didn’t a large number of technology mods think of this?). Therefore, I just want to add some metal doors like the vanilla iron doors. In addition to hardness and explosion resistance, they have the same functions as the vanillal iron doors. Maybe they will have some different textures instead of the vanilla iron doors that just change color. In addition, trapdoors is also OK.
PS：I found a fucks bug that caused infinite iron replication when melting the vanilla iron door in TE4 induction smelter…
