Deliver Tool Steel, Alloy Steel Everywhere - Dongguan OTAI ...
Buy In Confidence Returns Accepted Find Out More. Welcome to Otai Special Steel L/C Payment Be Accept Quality Assured By ISO 9001:2008 A high-technology steel mill in Dongguan, China. With over 16 years of experience we provide high-quality tool steel, Mould Steels, Special Steels made exactly to your specifications.