... wheel weights 3. ISO 9001 and TS16949 certificate wheel balance weights for aluminium alloy wheel and steel wheel applicationMaterial ... : zinc-alloy, Fe, Fb-alloyMaterial for balance weights body: zinc-alloyMaterial for balance weights clip: spring-steel(AISI 1066)(hardness: ... HRC40-44)stick-on spray coated fe wheel balance weights1.material:fe/iron, other materials available-zn, pb ...