Filter pipes of unplasticized polyvinyl chloride (rigid PVC, PVC-U) for drilled wells, with cross-perforation and threaded connection for nominal sizes DN 40 to DN 100— 3 стр.
Filter pipes of unplasticized polyvinyl chloride (rigid PVC, PVC-U) for drilled wells, with cross-perforation and threaded connection for nominal sizes DN 40 to DN 100— 3 стр.