This standard specifies the classification and marking, requirements, test methods, inspection rules and markings, packaging, tran

This standard specifies the classification and marking, requirements, test methods, inspection rules and markings, packaging and s

This standard specifies the terms and definitions, classification and labeling, requirements, test methods, inspection rules and s

This standard specifies the chemical analysis methods for potassium feldspar loss on ignition, silicon dioxide, ferric oxide, tita

This standard specifies the test methods for the physical properties of raw materials for electrical porcelain, such as feldspar,

JB/T 5893.4-1991 Gongxian Special Grade Alumina Powder for Electrical Porcelain JB/T5893.4-1991 Standard Download Decompression Pa

JB/T 5893.3-1991 Raw materials for electrical porcelain Zuoyun clay ore JB/T5893.3-1991 Standard download decompression password:

This standard specifies the technical performance indicators, test methods, inspection rules and storage and transportation proced