化学配方数据库
配方类型: METALS AND THEIR TREATMENT
配方说明: Silver Alloy (Resistant to Oxygen and Sulfur) (French Patent
936,021)
配方组成: Nickel/150-100
Silver/800
Zinc/50-100

返回数据库查询
QQ: 2241752642
微信二维码
电话: 19906633110