katana Seppa copper

• all katana
• Uchigatana
• wakizashi
• tanto
• tachi
• ninjato
• Special knife
• Chinese sword
• true Yokote

• Tusba zinc alloy
• Tusba iron
• Tusba copper
• Tusba red copper
• Tusba White copper
• Tusba High grade copper
• Tusba High grade iron

• 1045 steel
• 1060 steel
• 1095 steel Clay Tempered
• T10 steel Clay Tempered
• forge folded steel
• folded steel Clay Tempered
• Damascus Steel
• Damascus Steel Clay Tempered
• Triple layered steel Clay Tempered
• wootz steel
• wootz steel Clay Tempered

• Blade color Primary metallic color
• Blade color black
• Blade color blue
• Blade color red
• Blade color Gold
• Blade color purple
• Blade color black and red

• More detailed classification