NS-EN ISO 11124-4:1997 涂装油漆和相关产品前钢基材的制备 金属喷砂清理磨料规范 第4部分：低碳铸钢丸 (ISO 11124-4:1993)
Preparation of steel substrates before application of paints and related products — Specifications for metallic blast-cleaning abrasives — Part 4: Low-carbon cast-steel shot (ISO 11124-4:1993)