1. Gr1 porosity Sintered titanium Filter. 2. Grade:T1-T9 . 3. Aperture:4um-160um ... 4. Thickness: 0.6-3.0mm. Gr1 Porosity Sintered Titanium Filter for Medical Use 1. Detailed Information. Item NameTitanium ... acid, sulfuric acid, acetic acid, oxalic acid, phosphoric acid, 5% hydrochloric acid, molten sodium, hydrogen, nitrogen, hydrogen sulfide, acetylene, water vapor, hydrogen, gas, carbon dioxide ...