... Unbreakable 2.Good gas permeability,resistant to corrosion&pressure,high strength 3.ISO9001:2008QC Filter element for explosion-proof, made of ... electron beam, used for filtration of hydraulic oil and gas in hydraulic and air control system. The features of it ... in many fields such as aerospace, aviation, hydraulic and machine, and automatic control. We arrange production according to ISO9001: ...