Fuyue ASTM weight OIML E2 F1 ASTM class1,2 polishing weight 316L stainless steel weight high quality&good price STANDARD SERIES BrandFUYUEMaterial316L ... chemical, medical, commercial and educational useNORMAL SERIES 1mg-100g weight set: The whole weight set includes 21pcs weights, a tweezer ... 200mg,500mg,1kg,2kg,5kg,10kg,20kg,etcCustomized weight available.Welcome to our company:No.8 Construction ...