1.surface :smooth ,clean 2.conductivity is good enough to be used for transformer 3.package :wooden box 4.diameter :3-70mm

 1.

Mechanical Test Result

NO.	Test Item	GB/T5585.1—2005	result	attachment
1	Conductivity	Min.96%	98%
2	Size(mm)	±0.05	meet
3	Hardness	>65HB	80-110HB
4	Surface	clean	good
5	Surface Oxide	Max.10ppm	8ppm
6	purity (Cu +Ag)	99.90%	99.95%

2. 

high conductivity copper bar