Tenders for Supply of Brass Tube Pipe In Length Of 4 To 5 Mtr Of Size Od-28Mm, Id-19Mm, Grade Cuzn30as Having Chemical Composition Copper Plus Incidental Nickel - 68.5-71.5 %, Lead Max - 0.07%, Iron Max - 0.06%, Arsenic - 0.02-0.06%, Total Impurities Max - 0.3%, Zinc- Remainder.Confirming To Is:407/1981 Or Latest. Party Will Submit Trst Certificate Of Chemical Composition From Nabl Accredited Lab. Along With Supply. Shop No.03