... weights 1 Material: cast iron, stainless steel, brass 2 Class: M1,M2,M3,E1,E2,F1,F2 3 OIML standard, high precision. Test ... international standard.3. Weights of classes: E1, E2, F1, F2, M1, M2.4. Material: Cast iron, stainless steel, brass.5. Sand blasted ...