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About日本橋梁工業
"Connecting tomorrow and the future" expansion joints for bridges. Manufacturing, sales, and construction of expansion joints for bridges are handled by Nihon Bridge Industry Co., Ltd.
The bridge expansion joint device, Dia-Free Joint, developed independently by Nihon Bridge Engineering Co., Ltd., is an ideal joint that excels in safety, durability, sound insulation, ease of construction and maintenance, and cost-effectiveness, built on over 40 years of experience and trust. We are a company that utilizes ideas and thrives on technology.