Chemicals to use in chandeliers manufacturing

Dear Sir,
My name is xxxx from xxxxx company in Egypt. We are one of the largest manufacturers of fashion crystal all over the world. Please check our website.
In order to move forward & enhance our business relationship we need an accredited supplier in the field of chemical industry &in the field of precious metals (metal, iron, copper& brass).
Also In the future we will need to expand our supplier in many field as we are a large manufacturing entity & we need spare parts, machines ,e