T/CHCA 001-2021
公路工程泡沫轻质土设计与施工技术规程
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Version history
Earlier editions: T/CHCA 001-2018 In force, T/CHCA 001-2019 In force
Later editions: T/CHCA 001-2022 In force, T/CHCA 001-2023 In force, T/CHCA 001-2024 In force
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