发布时间:2025-01-21 04:44:31
估算定额:粗线条的概算,项目笼统简单
概算定额:项目综合,作为投资编制依据
预算定额:基础定额,可以指导施工和投资
内部定额:仅限与企业内部使用
hdpe双壁波纹管壁厚,比如说300mm、500mm的管壁厚,能不能给我传个各种型号管壁厚表,急用谢谢了
2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31小区变配电室引来两路高压电源 在支路上还用设计双电源切换吗 如果需要设计请解释需要原因
2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31 2025-01-21 04:44:31