Profile: Arkhe Co., Ltd specializes in optical raw materials and parts. Our optical raw materials are pure titanium, beta titanium, alpha-beta titanium, and nickel-plated titanium. These are available in coil and as pure titanium sheets. Our optical parts include screws, nuts, washers, rim locks and hinges. Our pure titanium rim wire has a good corrosion resistance. The OS lock screws are made of gas-carbonized low-carbon steel with partially enhanced threads. The beta titanium is regarded as an epoch-making spectacle material because of its good spring and light weight.