1. Cov dej khib nyiab decolorization hauv cov dej phwj tuaj kho
2. Kev sim dej pov tseg defluorination
3.Municipal engineering dej khib nyiab decolorization
4.Decolorization ntawm luam ntawv thiab dyeing dej khib nyiab
5.Kev sim dej khib nyiab decolorization
6.Fluoride tshem tawm los ntawm kev sim dej khib nyiab
Post lub sij hawm: Nov-28-2024