These bellows are constructed in one piece. Are printed mainly in NBR rubber protected ozone (resistant to oil and grease), with good resistance to atmospheric conditions. Some models are made of EPDM rubber, then good for applications in air and irradiated by the sun, but not resistant to prolonged contact with oils and fats. The production of the rubber bellows occurs with technology of injection molding using steel molds already existing for the geometries which are predetermined, and not editable. Oil resistant rubber, hardness 45° Shore A (±5), if you ask in other materials as natural rubber,
neoprene, silicone.
Model tipe AEV 070
Design manufacturer