... 1mg-2kg laboratory weight 2, OIML E2,F1 calibration weight 3, ASTM class1,2 weight 4, 316L stainless steel weight STANDARD SERIES ... commercial and educational useNORMAL LINE 1mg-2kg weight set: The whole weight set includes 27pcs weights, a tweezer, aluminum ... weight available.Welcome to our company:No.8 Construction Road, Choumou,Bieqiao Town,Liyang City,Jiangsu Province,China.Heavy capacity ...