印度采购需求：4u 电脑机架机箱、4u 电脑机架机箱、工业电脑机箱、电脑机架式机箱、机架式 4u 机箱、机架式电脑机箱

I'm looking for a quote on a 19-inch, 4U rackmount PC case with a sleek black finish. The case should be capable of accommodating a full-size GPU and have space for up to 6 standard 3.5-inch hard drives. If you have a similar 3U option that meets these requirements, I'd like to consider that as well. Please provide details on dimensions, material, and any additional features that could be beneficial. Additionally, let me know about pricing, lead times for production, and shipping options. It's important for us to ensure compatibility with high-performance components, so any relevant specifications would be appreciated. Looking forward to your prompt response!