GB 28379-2022 Minimum allowable values of water efficiency and water efficiency grades for flush valves of plumbing fixtures 2023/7/1
#Energy Efficiencyby ED03
Uploading Date: 2023-07-28 16:10:04
GB 28379-2022 Minimum allowable values of water efficiency and water efficiency grades for flush valves of plumbing fixtures - Chinese version
