Korin's woks are traditionally made out of a durable single piece of iron for commercial use without being too heavy or flimsy. This Peking style wok is traditionally shaped with a rounded bottom that allows for less spillage, concentrated heat, and easier tossing of ingredients.
The high quality material also retains a high uniform heat and easily forms a stable carbonized layer of season once prepared. The carbonized season will have a better non-stick surface than woks made out of carbon or stainless steel.
Rounded wok requires a wok ring that provides stability on the stove and concentrates the heat when in use.