... : The rubber feet, also called rubber bumpers or shock absorbers are composed of a rubber part , they ... ; rubber about 40~85 Shore ATechnologyMoulding, punch, extrusionFunctionShock absorption, bufferCertificateISO ,FDA ,SGS,ROHS Advantages Ozone and chemical ... conditions from normality, in terms of temperature and contact with aggressive substances. Other materials: Silicone, VMQ, Neoprene, ...