美国采购需求：动物长凳，奶牛长凳，玻璃钢奶牛，公园长凳，公园椅，公园配套产品

I'm looking for detailed information regarding the fiberglass dairy cow bench. Specifically, I'm interested in pricing options, available sizes, and any bulk purchase discounts you might offer. Additionally, could you provide insights into the durability and maintenance requirements of these benches? Understanding how well they hold up in various conditions is important for our decision-making. Since we're located in Oakland, California, I'd also appreciate it if you could include shipping costs and estimated delivery times in your response. It would be great to know more about the shipping process as well, including any associated logistics. Looking forward to your prompt reply so we can explore this potential collaboration further.