铜和铁使用最为普遍，因其坚固且易于塑形。
Copper and iron were most commonly used as both are tough and easily shaped.
试样以王水分解、泡塑富集分离金，硫脲解脱，以硝酸-硫酸破坏硫脲，用氟化氢胺- EDTA掩蔽铁、铜、铅等干扰元素，加碘化钾使之析出碘，以淀粉为指示剂，用硫代硫酸钠进行滴定。
Conceal disturbing elements like iron, copper, lead with hydrogen fluoride amine-EDTA, add the potassium iodide to separate iodine, and take starch as indicator, titrate with sodium hyposulfite.
主营灰铁铸造、球铁铸件、搪瓷、高温漆、炉具铸件以及户外家具喷漆、喷塑等铸件。
Main gray iron casting, ductile iron casting, enamel, high-temperature paint, stove castings as well as outdoor furniture, painting, spray casting and so on.
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