美国采购需求：卡盘钻、卡盘旋转、弹簧夹头、弹簧夹头钻、弹簧夹头钻夹头、弹簧夹头系统

I wanted to share some feedback regarding your recent sales call to my shop. Unfortunately, the salesperson lacked clarity on key product details, specifically whether your chucks are 3 jaw or 4 jaw, and he seemed unsure about the distinction between tool holding and work holding. These aspects are crucial for us in making purchasing decisions. While he was enthusiastic and apologetic, his lack of product knowledge left me uncertain about your offerings. Therefore, we're not looking to pursue your products at this time.