Special Weight, Hook Weight, Slotted Weight Shanghai Puchun Measure Instrument Co., Ltd. Base Info Model NO.:FM-SMaterial:Stainless SteelClass:M1,F2,F1Specification:1g~20kgOrigin:ChinaHS Code:8423900010 Description Pre:M1 Class 500kg Cast Iron Calibration Test Weight Next:Triple Beam Mechanical Balance MB2610 for School Laboratory