Exclusive mold-opening pure copper Tatsu Yamashiro [Dragon Blood Wu Ji] manganese steel is forged and bent for 90 degrees without deformation, and the blade is treated with red technology. The cutting edge is processed by hand [grinding and grinding white double-line flame pattern], and the hardness is as high as 60. Cutting iron does not hurt the blade. The full length of the sheath is 103 cm, the blade length is 71 cm, the handle length is 26 cm, and the blade width is 3.2 cm. The exclusive mold-opening pure copper carving knife is similar in color painting.