LEIHAU is a leading supplier of precision calibration weights, scale weights, and test weights. Offering a wide range of high-quality, expertly manufactured, robust and easy-to-clean OlML, ASTM and other test weights from 1mg to 5tons to reduce errors and to improve your calibration processes. Flexibility in production allows us to produce both small and large series at attractive prices.  Contract production available in Stainless Steel Weights, Cast Iron Weights, Calibration Test Chain, Steel Iron Weights, Deadweight Calibrating Machine, Chrome M2 Weights and Custom Service. They are used to spot-check the performance and verify the calibration of analytical balances, precision balances, and general-purpose scales in research laboratories, educational settings, and other working environments. We select only the finest raw materials in order to manufacture high quality weights,and our weights ensure the highest possible corrosion resistance over their entire lifecycle. Their low magnetic permeability also ensures reliable and precise values. Established in 1994, LEIHAU has continually enhanced its reputation through personnel,refined and accredited processes,and equipment.