DIN EN ISO 11124-4:2018
涂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 11124-4:2018)
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 11124-4:2018)