Gem bids for Physical Verification Of Orifice Plates Used For Flow Metering, 42 Item 1 Of Sor Ref Section V11 Item 2 Of Sor Ref Section V11 Item 3 Of Sor Ref Section V11 Item 4 Of Sor Ref Section V11 Item 5 Of Sor Ref Section V11 Item 6 Of Sor Ref Section V11 Item 7 Of Sor Ref Section V11 Item 8 Of Sor Ref Section V11 Item 9 Of Sor Ref Section V11 Item 10 Of Sor Ref Section V11