As the world's leading steel supplier, we can provide a wide range of steel types, including carbon steel, weathering steel, boiler steel, structural steel, etc., and we can meet customers' requirements in any size, as well as the production of steel and complete plant plans. If you are interested in these aspects, please contact us.
The 4 or 5 layer fabric provides protection against airborne allergens, pathogens and pollen that are greater than 0.3 microns in size. The filtration system has an efficiency greater than 95%, providing high protection for respiratory health. KN95 masks are disposable, which leads to better hygiene and reduced contact with infections. Since health kn9facemaskUser rating 4.8/5