Our folded steel katana have two style: 1, Ecumenic folded steel,it is fold by mid-carbon steel,folding 8 to10 times to create visible grain. 2, High quality folded steel, it is fold by high carbon steel and mid-carbon steel, folding 10 times to create exquisite grain, the blade mirror polished and razor-sharp edge, differentially hardened in a clay-tempering process, it suitable for display or practitioner and collector. This line swords can be complete disassembled for full maintenance. All models can be customized as personal needed