INVITATION TO BID FOR Supply and Delivery of 100mmØ, 75mmØ Unplasticized Polyvinyl Chloride (uPVC) Pipes CLASS-150, and 63mmØ PE Pipes SDR-11 / Bids and Awards / By Murcia Water District INVITATION TO BID FOR Supply and Delivery of 100mmØ, 75mmØ Unplasticized Polyvinyl Chloride (uPVC) Pipes CLASS-150, and 63mmØ PE Pipes SDR-11