美国采购需求：PVC球阀、PVC底阀、PVC接头、PVC单接头球阀、PVC双接头球阀、PVC管件

I'm currently sourcing PVC ball valves and would like to request pricing information for a specific size. If you could provide your best quotes, including any bulk discounts or minimum order quantities, that would be great. Additionally, it would be helpful to know about your available stock, lead times for delivery, and any warranty or quality assurances you provide. Looking forward to your prompt response so I can make an informed decision. Thanks!