... test weights 1 Material: cast iron, stainless steel, brass 2 Class: M1,M2,M3,E1,E2,F1,F2 3 OIML standard, high precision. Test ... 100kg, 200kg, 250kg, 500kg, 1000kg, 2000kg,5000kg test weights, and produce as customer required.Features:1. OIML ... standard.3. Weights of classes: E1, E2, F1, F2, M1, M2.4. Material: Cast iron, stainless steel, ... OE M sevice is available grip handle cast iron test weights