电动洛氏硬度计FY-HR150D，数显洛氏硬度计FY-HRM-150S 触摸屏数显洛氏硬度计FY-HR-150CMS，数显全洛氏硬度计FY-HR-150SS 数显表面洛氏硬度计 FY-HR-45S，触摸屏数塑料显洛氏硬度计FY-HR-150SL