NBR rubber protector 1.pass EU environmental protection test 2.good ageing ... (Dimethyl Fumarate) , Dimethyl Formamide,APEO,AZO,NP(Nonyl Phenol),Color fastness,Chlorcosane, REACH,Formaldehyde, EN71 standard and Aging-resistant test ... resistance and anti-tensile strength.Custom size shape and color.Ps:our smooth surface tubes are waterproof and easily ... us,thank you very much. NBR foam rubber protector