配方类型：	METALS AND THEIR TREATMENT
配方说明：	Cast Iron Welding Flux (U.S. Patent 2,799,607)
配方组成：	Iron Powder/2-6 Boric Acid/7.5-10.5 Potassium Pentaborate/40-50 Ilmenite/4-6 Potassium Nitrate/8-10 Borax/20-30

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