波兰采购需求：雨伞供应商，雨伞厂，雨伞制造商，折叠雨伞，直杆雨伞，促销雨伞

I want to emphasize that quality is our top priority for this order. We're looking for products that not only meet our specifications but also exhibit durability and reliability. It's crucial that your factory adheres to high-quality standards throughout production to avoid any issues down the line. Could you please provide detailed information about your quality control processes and any certifications you have? Additionally, it would be great to know how you handle potential quality issues and what steps you take to ensure consistent product performance. Looking forward to your prompt response!