... componentOur products include:1.material:made in high grade silicone rubber material,environmental safe material,non-toxic.2.it' ... safe,widely used in the instruments and equipments.3.waterproof,dustproof,anti-oil,anti-acid,anti-alkali,can be ... ItemDescriptionProduct NameRubber partMaterialNR, NBR, SBR, EPDM, IIR, CR, SILICONE, VITONHardness 20~90 Shore APacking Inner-Plastic Bag; Outer -Standard ...