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Yoshino Gypsum
Fire-rated gypsum partition and shaft-wall systems.
Top companies · September 2026
吉野石膏株式会社 is Japan’s largest gypsum board maker and publishes a full 構造認定書一覧 of 国土交通大臣認定 certificates for its fire-rated wall systems, including 耐火構造 approvals FP060NP-0383(2) and FP060NP-0174 for gypsum-faced mineral-wool partitions. Its 耐火遮音 system catalogue is issued directly against those ministerial certificate numbers for specification use.
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Head Office
Tokyo, Tokyo
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