美国采购需求：非球面透镜、球面透镜、非球面眼镜透镜、非球面光学透镜、光学眼科透镜、1.71 透镜

I'm looking to gather some detailed pricing information for your 9pm lenses. Could you please provide a breakdown of costs, including any potential bulk discounts or special offers? Additionally, I'd like to know the minimum order quantities, lead times for delivery, and any warranty or return policies that may apply. Also, if you have different variations or specifications available for these lenses, it would be great to get that info as well. Understanding these details will help me make a more informed decision moving forward. Thanks!