M1 Class 500kg Cast Iron Calibration Test OIML Weight Shanghai Puchun Measure Instrument Co., Ltd. Base Info Model NO.:FM500Material:Cast IronSpecification:500KGOrigin:ChinaHS Code:8423900010 Description Pre:Slim Electronic Weighing Bathroom Scale with Glass Platform Next:OIML 5kg 10kg 20kg Cast Iron Standard Calibration Test Weight