Lamp holders for chandeliers

We are selling our products in the local market and export them as well. and we are the new member of the gunnies required , we used many matrieal i will manthion some of them as his piriorty to us ( copper sheet , copper circles ,copper tube , lamp holders , iron tubes and stainlesstel sheet ),that is the very important componant for our production so that i will be very honor if i can recive the any information to help me to find this supplaiers in your country .