중국GRP 파이프 제조 / 공급 업체,제공 품질 High Strength Structure GRP Pipes by Renewal of Existing Pipelines by Pushing, ISO 23856 Fiberglass Jacking Technology: DN300 to DN3000 Trenchless Pipes High Load Capacity for Water and Sewer Treatment Plants, ISO 23856 Fiberglass Jacking Technology: DN300 to DN3000 Trenchless Pipes High Load Capacity for Thermal Power Circulating Water 등등.