What you want to ask is whether the efficacy of Hongming Tommalinkang is true or not? Really. Because the use of Hongming Tuomalin Huokang is beneficial to human health, the effect of Hongming Tuomalin Huokang is real. Kang originated from the northeast bungalow. In the absence of buildings, the kang is made of cement and mud. There is a stove, and coal is usually added in the stove, which makes the kang itself very hot, hence the name Kang.