打小牌怎么玩简介:Zhu Cihong still said nothing. Forging can reduce impurities in iron. The sulfur content can indeed be reduced, but other beneficial contents are also reduced. The more forging, the brittle the iron. It is suitable for making swords, guns and armor, but it is not suitable. Casting cannons or making gun barrels.
Zhu Cihong still said nothing. Forging can reduce impurities in iron. The sulfur content can indeed be reduced, but other beneficial contents are also reduced. The more forging, the brittle the iron. It is suitable for making swords, guns and armor, but it is not suitable. Casting cannons or making gun barrels.