Standards

Current Category: CN-DB31 - Shanghai City

Status: Abolished
All Active Pending Replaced Abolished Abolished (Transferred)
Publish Year: 2024
All 2026 2025 2024 2023 2022 2021& Before
DB31/T 1518-2024 Abolished

DB31/T 1518-2024 Urban rail transit communication and signaling digital operation and maintenance system general requirements

Publish Date: 2024-11-29
DB31/T 1522-2024 Abolished

DB31/T 1522-2024 DB31/T 1522-2024 Street tree maintenance quality evaluation

Publish Date: 2024-11-29