Are all Tosa firewood knives green?

Tosa wood knives are not all blue, but also jade steel. According to relevant public information, Japanese wooden knives are generally handmade by Lai Angang, even green paper steel and jade steel, especially the Tosa wooden knife produced by Kochi Prefecture in the south is world-famous. The quality is reliable, but it can hardly be seen in domestic hardware stores. Domestic players can only choose some old items that flow from Japan to China through foreign garbage channels in second-hand flea markets and antique markets. Especially the wooden knives made of Yugang, which are made of the same material as those made in Shancheng, are hard to find and have no market.