Sparkies tips and tricks (1:51)
Used to reinforce a hole and to shield electrical cable from the sharp edges of the hole.
Auslec03 9243 3555www.auslec.com.au
TLE electrical(02) 8839 9000www.mmem.com.au
R&J Janter Enterprises08 9302 3334www.shazian.com.au/janter