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× telephone office communication channels supporting a single project budget for construction design stage (i) design drawings and description 1. × × × × × × Bureau of supporting communication cable loop pipeline project plan (Drawing No.: GD-S-01) 2. × × × × × × Bureau of supporting communication cable loop pipeline vertical section (Figure No.: GD-S-02) 3. 1.20m × 1.7m × 1.80m = (inside length × width × period of high) hand-hole diagram (Drawing No.: GD-S-03) 4. tin (6 × 1) steel pipes, tin (3 × 2) plastic pipe cross-sections (Figure No.: GD-S-04)