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2026/05/07
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About TTK
STEP 1. Constructing high-rise buildings in earthquake-prone Japan
STEP 2. High-tensile threaded rebars (Neji-Tetsu-Con): A major innovation in the construction industry
STEP 3. Leveraging our unique strengths to support our business
STEP 4. Our future vision
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Notice Concerning Changes of Officers
2026/05/07
