美国采购需求：碳化硅涂层，碳化钽涂层，碳化硅陶瓷，半导体元件，中国制造商，供应商

I'm interested in gathering more comprehensive information regarding Product 4. Specifically, I would like to understand the pricing structure, including any volume discounts you may offer, as well as the general availability of this product. Additionally, please let me know about any lead times for manufacturing and shipping, as this is crucial for my planning. If there are any variations or specifications for Product 4 that I should be aware of, I'd appreciate it if you could share those details as well. It would be helpful to know about your minimum order quantities and any warranties or support services linked to the product. This will assist me in making a well-informed decision moving forward. Looking forward to your prompt response.