Sharaxaad Gaaban:

Biyo mareenka ibta naaska waxaa laga soo saaray qolof adag oo adag oo aluminium ah iyadoo la raacayo tilmaamihii ugu dambeeyay iyo heerarka ANSI C80.5(UL6A). Dhuumaha naasaha ee adag ee aluminiumka waxaa lagu soo saaraa cabbir ganacsi oo caadi ah laga bilaabo 1/2 ilaa 6", dhererka ibta naasaha oo ay ku jiraan ibta naaska u dhow, 1-1/2", 2", 2-1/2", 3", 3-1 /2”,4”,5”,6”,8”,10”,12” ama sida codsiga macmiilka. Ibta naasaha waxaa loo isticmaalaa in lagu xiro marinka aluminium adag si loo kordhiyo dhererka marinka.