T/HBAS 007-2021
给水排水多重增强钢塑复合管道工程技术规程
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Scope
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Version history
Earlier editions: T/HBAS 007-2018 In force, T/HBAS 007-2019 Withdrawn, T/HBAS 007-2020 In force
Later editions: T/HBAS 007-2022 In force, T/HBAS 007-2023 In force
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