布基纳法索采购需求：排水沟、缝隙排水沟、槽式排水沟、排水系统、排水盖、缝隙排水系统

I'm looking for HDPE corrugated drainage pipes that have a diameter of 300mm and come with perforations. Additionally, I need male-female connectors to ensure easy installation. It's also important that the pipes meet a pressure rating of SN8 to handle reliable drainage applications. Could you please provide details on your pricing, available quantities, and lead times for these products? If you have any specifications or technical sheets, that would be great to review as well. I'm interested in building a long-term partnership if the quality and pricing align. Looking forward to your prompt response!