化学配方数据库
配方类型: METALS AND THEIR TREATMENT
配方说明: All-Metals Solder (U.S.S.R. Patent 113,111)
配方组成: Cadmium/12-18
Silver/23-27
Copper/To make 100
Zinc/21-27

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