Matsayin ASTM 1 (Ƙananan) Hasken Masks na Likita / ƙaramar BFE & PFE kariya da aka yi amfani da shi don hanyoyin gabaɗaya, ƙarancin tiyata, ilimin ido, da da'a na numfashi.BFE a 3.0 micron ASTM F2101 ≥ 95% PFE a 0.1 micron ASTM F2299 ≥ 95% Delta P <5.0 mm H2O/cm2 Resistance Fluid zuwa ...
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