(Fazlul Help needed) Hardware shop in Muscat

Hi,

As most of the technician, electrician, mechanics in Oman are poorly skilled, so most of us tend to do the repairs/upgrades for most of our stuff by ourselves, but the problem is where can we find the tools needed to perform such job??

For example, am looking for the double faced 3M adhesive since almost one month but I can't find any shop in Muscat knows what am talking about, so if any body can give any lead or guide to the right place I will be grateful.

Thanks

Halim