adenwalla is karachi based.
from googling around, there is kohinoor techno impex on brandeth road lahore, who deal in similar stuff.
http://kti.com.pk/permatex.html
CEO:Mr. Waseeq Usmani
Rehman Street No. 3,SE 11-17-S8,
Brandreth Road, Lahore Pakistan
Landline: +92 42 37661552 sales@kti.com.pk
+92 42 37380834
Fax: +92 42 37380834
Direct: +92 333 4395392
+92 321 4978988
+92 300 4186757
there is also 7mart.pk
28 Brandreth Rd, Ram Gali Naulakha, Lahore, Punjab 54000