斯洛文尼亚采购需求：亚克力盒，亚克力展示柜，带盖亚克力盒，亚克力展示盒，透明亚克力盒，定制亚克力展示柜

I'm looking for a display case that features a lock for security purposes. I'd like the dimensions to be approximately 30 cm in width, 50 cm in height, and 15 cm in depth, with three shelves included for optimal organization. Could you provide me with the weight limit for each shelf? Also, I'm curious about the minimum order quantity for this product. Additionally, I would like to know if there's an option to print a custom design or logo on the background of the display case. This would greatly enhance its visual appeal and align it with my branding needs. Please share any details regarding pricing, lead times, and shipping options as well. Looking forward to your prompt response!