High performance manganese steel samurai sword "wuqitong" high performance manganese steel has toughness, bending 90 degrees, no deformation, hardness up to 60 degrees, cutting iron does not damage the blade, sheath length of 103 cm, blade length of 71 cm, handle length of 26.5 cm, blade width of 3.2 cm, knife body hand forging, mirror polishing, solid wood paint sheath painted Japanese family emblem "wuqitong" with exquisite thread