沙特阿拉伯采购需求：黑白超声波、彩色多普勒超声波、心电图、数字X光、病人监护仪

I'm looking for products in black. Please provide me with details on the available options in this color, including any specifications and features. It's essential for me to understand the materials used and whether there's potential for customizations or variations, especially regarding finishes or textures. Also, if there are any bulk purchase discounts or special offers for these black items, I'd love to hear about them. I'm eager to see your catalog or any product sheets that can give me a better idea of what's available. Please include lead times and shipping information as well, since I'm considering making a sizable order soon. Thanks!