Silver particles have the size of 3-10 nm, they have great surface area and this is the reason of high activity of the product. these particles are injected into the glaze during the manufacturing process in a 1%-2% concentration. additional applications can be done prior to firing of the tile. Saso (saudi arabia standards organisation) is currently enforcing the requirement of a saso iecee recognition certificate for certain types of products being imported in saudi arabia. the saso iecee recognition certificate is required in order to clear customs. the full list of products that are affected by this regulation is below: Founded in 1981 to supply specialised grinding wheels and other abrasive products to the industrial market, the company has grown to become a major force in industrial abrasive supply in south africa. in addition to forming part of the global tyrolit group, our locally manufactured products are exported to satisfied customers world-wide. read more In air transport / features pilgrims are not the only way to progress. posted 12 february 2020 · add comment saudi arabian carrier, flynas, plans to tap into the country’s drive to attract more moslem pilgrims and holidaymakers – as it prepares for a major expansion of its fleet.