With almost 50 years in business, RWK Agencies has become South Africa’s leading supplier and service agents in hardness testing systems. RWK offers a range of metal, plastics, rubber, and fibreglass testing equipment as well as calibration services throughout South Africa, providing you with non destructive testing via our hardness tester. RWK’s customers have come to appreciate our   honesty, dedication to quality, and our advice on hardness testing equipment.