索马里采购需求：预制房屋，集装箱房屋，集装箱厢式货车房，预制房屋，模块化建造，预制集装箱房屋

I'm looking to explore options for helmets that meet safety and quality standards. Specifically, I'm interested in understanding your range of products, including any unique features or certifications that might set them apart. Could you provide me with information on the materials used, size variations, and customization options available for your helmets? Additionally, it would be great to know about your pricing structure, minimum order quantities, and lead times for production and delivery. If you have any catalogues or product datasheets, please share those as well. I'm eager to evaluate what you have to offer and see how it aligns with our requirements. Looking forward to your response!