The wok is pig iron, cast iron, wrought iron, which is good
Of course, this iron wrought iron cookware, cast by cast iron cookware is better than that of gray iron and wrought iron rust, not easy to appear in the process of using iron pot is even more so. However, because the white iron is hard and brittle, in the production of thin thickness not easy when cooking fried Lie great master, so many manufacturers prohibitive, even on the surface of cast iron cookware market for gray iron.
Iron carbon content% O 05, carbon steel zero percent 5 to 2 0, pig iron carbon content of two percent points in just over 0. White cast iron and gray cast iron points, are pig iron.
