汽车制造用钢材采用化学酸洗去除氧化皮。
Oxide scale of steel used for automobile manufacture was removed with pickling.
大型铸铁、铸钢件，钢结构件、大型锻件，热处理件的清砂、除锈去除氧化皮表面清理等。
Sand and rusts removing of large-sized cast iron, cast steel, steel structures, large-sized forging and surface treatment of oxidized work pieces.
GP棱角钢砂此种磨料新制成时，是尖棱状的，使用过程中棱角很快就被磨圆，特别适合于去除氧化皮作业。
GP ARRIS STEEL grit Angular when new, this grit rapidly rounds off in use and is particularly suited to descaling applications.
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