Specifications are as follows:

COPPER : 99.99%
CARBON: 0.03%
COBALT: 0.001
IRON: 0.005%
PHOSPHORUS: 0.01%
SULPHUR: 0.01%
ZINC: 0.003%
Copper millbery wire scrap shall be considered free of alloys when the
residual alloying elements
do not exceed the following percentage Points:
Cu = 99.70 +
Fe = <0.00002
Ni = <0.00002
Zn = <0.000003
Ag..ppm = 19.29
As. Ppm = < 0.01
Ba. Ppm = <2.0
Cd. Ppm = <0.03
Cr. Ppm = <0.02

Wire diameter: 0.30mm, 0.25mm, 0.20mm
Weight/spool: 3 kg, 5 kg, 7 kg, 15 kg, 20kg
Tensile strength: 1000 N/mm2, 900 N/mm2, 500 N/mm2, 450 N/mm2, N/mm2
Packing: Shrink wrapped+carton+pallet to resist moisture, quake, and corrosion