Pc Case Import and Export Companies White Goods – Home Appliances Businness Companies

We are technology company, and we work on these kinds of projects. Now I am working on one of the projects and searching for PC case. I'm searching PC case micro ATX, the main requirements that I have is 4 x USB port in front side or top of case. also, space for DVD±R/RW. If u have or u can make these type of PC case please contact me. I want low price cases. in total 150 PCS.