化学配方数据库
配方类型: METALS AND THEIR TREATMENT
配方说明: Welding & Hard Soldering Flux (German Patent 932,828)
配方组成: Borax/84.7
Copper Sulfate/0.6
Alum/8.2
Boric Acid/0.3
Ammonium Chloride/6.2

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