Hayakawa Rubber offers a wide range of infrastructure-related products designed to improve concrete quality, waterproofing and seismic performance. These include Spanseal waterstops for concrete joints, rubber waterstops and flexible joints for connecting concrete structures, and Santac IN Joints for flexibly connecting aging pipeline joints. In the first half of the fiscal year ending December 31, 2025 (January–June), sales of the…
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