美国采购需求：凸面镜、减速带、电缆保护器、橡胶车轮挡块、橡胶路缘坡道、橡胶车轮楔块

I'm reaching out to explore bulk pricing options for your parking locks. Our company is looking to purchase a substantial quantity, so we're eager to find out about any available discounts for larger orders. Specifically, we're interested in understanding your minimum order requirements and any pricing tiers you might offer based on quantity. Additionally, could you provide details on the specifications of the parking locks, including materials used, available colors, and any warranties or guarantees? It would also be helpful to know about your lead times for delivery and any shipping costs associated with bulk orders. Looking forward to your detailed response!