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更新时间：2025-06-24 直链：mewoi.cn

G&R美国杰瑞是国际知名的便携式硬度计生产商，是一体化便携式里氏硬度计和积木组合式全自动洛氏硬度计的发明者。产品已进入全球20多个国家的市场，NASA、空中客车、波音、沈飞、中石化、中石油、富士康等均长期使用G&R美国杰瑞硬度计。

更新时间：2025-06-24 直链：www.grhardnesstester.cn