美国采购需求：丝线、亚麻线、棉线、梭织线、棉麻混纺线、棉尼龙线

I'm interested in your selection of stock colors for the merino/cashmere blends. Could you provide me with details about the available colors and their respective prices? Additionally, I'd like to know the quantity price breaks—specifically, at what order volumes do these discounts begin and what the different price tiers are. Your prompt response will help me in making a decision. Thanks!