扎伊尔采购需求：电动执行阀、气动执行阀、流量控制阀、压力调节阀、球阀、蝶阀

I am looking to procure a specific type of pneumatic valve suitable for a mining operation in the D.R. of Congo. The desired specifications include a valve with a large diameter and a certain pressure rating, designed to handle robust applications typically found in the mining industry. The material composition should be stainless steel to ensure durability. Additionally, I am interested in a valve that features a metal seat and is operated pneumatically. If your factory has a compatible equivalent that meets or exceeds these requirements, please provide details regarding pricing, lead time, and available options. You can reach me at my telephone number for any clarification or further discussion about this inquiry. Looking forward to your prompt response!