Sichuan Provincial Standard of the People's Republic of China
Latest
DB51/T 2500-2018
Scope
This standard specifies the classification and quality evaluation of natural unmounted and inlaid ground red materials. This standard applies to natural unmounted and mounted ground Nanhong.
DB51/T 2500-2018 history
2018DB51/T 2500-2018 Classification and Quality Evaluation of Nanhong