尼泊尔采购需求：连续齿轮铰链、隐藏式齿轮连续铰链、铝制连续铰链、隐藏式门铰链、直升机停机坪、铝制直升机停机坪

I'm reaching out to get more detailed information about your aluminum profiles. Specifically, I'm interested in understanding the pricing structure for various models you offer. It would be great to know if there are volume discounts or special rates for bulk purchases. Also, any details about minimum order quantities would be helpful. Additionally, if there are any specifications, such as dimensions or finishes available for these profiles, please include that info as well. I'm keen on exploring how your products might meet our project needs, so any related technical documentation or catalogs would also be appreciated. Looking forward to your comprehensive response!