请问谁知道联塑pvc排水管的内外径分别是多少毫米啊50管又是多少呢
2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35 2025-01-31 09:19:35