F1 Class 1mg~2kg Stainless Steel Standard Weight Set Shanghai Puchun Measure Instrument Co., Ltd. Base Info Model NO.:FM-SWT-2kgMaterial:Stainless SteelClass:F1Specification:1mg~2kgOrigin:ChinaHS Code:8423900010 Description Pre:F1 Class Standard Calibration Weight Set Next:304 Stainless Steel Test Calibration Weight Mass Comparator