Methods for chemical analysis of lead concentrates the fire - assaying methods for the determination of gold and silver content 火试金法测定金量和银量
2.
Method for chemical analysis of lead concentrates - the fire - assaying methods for the determination of gold and silver content 铅精矿化学分析方法火试金法测定量和银量
3.
Methods for chemical analysis of gold concentrates - the fire - assaying method for the determination of gold and silver content 金精矿化学分析方法火试金法测定金量和银量
4.
The methods for chemical analysis of lead and zinc bulk concentrates - the determination of gold and silver content - the fire - assaying methods 混合铅锌精矿化学分析方法.金量与银量的测定.火试金法