英国采购需求：高密度聚乙烯池塘衬垫，鱼塘衬垫，高密度聚乙烯不透水膜，1毫米高密度聚乙烯膜，双向土工格栅，塑料土工格栅

We're looking to procure a specific type of HDPE geomembrane for our operations in South Africa, focusing on quality and competitive pricing. The specifications include a particular thickness, width, and lengths, along with a black color requirement. We're aiming for a total quantity of 6 containers, equivalent to approximately 349,740 rolls. Please provide us with your best quotes for delivery to both Mombasa and Durban ports, calculated on a CIF basis. Payment will be through an open account with insurance, set for 60/90 days after the bill of lading date. Your prompt response will be greatly appreciated as we aim to finalize our supplier choice soon.