1mg-500g E2 class weights OIML E2,F1 calibration weight ASTM class1 ... steel weight polish weights STANDARD SERIES BrandFuyueMaterial316L stainless steelNominal Value1mg-500g(24pcs)MarketSwiss, Syria, Moldova, Turkey, Australia, Bulgaria, India, Japan, ... for laboratory, chemical, medical, commercial and educational useNORMAL LINE 1mg-500g weight set: The whole weight set includes 24pcs weights, a ...