Tower Tech System is a running a company named Towe Tech Systems in Pakistan. Our main products in which we deal are to export the used OPC Drums of all brands. All that we are doing is just to save the manufacturing cost of our valuable companies.Only the upper coating is required to make a used drum workable. You need not to change the main gear evenHere in Pakistan the local vendors are doing so to save the OPC Drum cost. We suggest your company to think seriously on this offer and do contact with us. Looking for a good response.Tower Tech System