Field Engineering Materials Co., Ltd. Taian professional supplier of prestressed corrugated metal pipe, the main application and bridge construction and other places, is machined bellows, wavy port, bite each other, made a circle around. Product quality assurance, complete specifications, we have a good after-sales service. Our main products are: Tyan waterproof materials and metal bellows prestressed concrete, pavement maintenance geotextile, one-way stretch plastic grating, steel grating, fiberglass grating, polyester geogrid, Geocell, high strength Geocell, staple acupuncture geotextiles, filament spunbond needle geotextile, geomembrane, reinforced geomembrane, geomembrane, soft water pipe, plastic blind ditch, geonet, geotextile mat, polypropylene reticular fibers, polypropylene monofilament fiber, polyester fiber, EVA, PE waterproof membrane, waterproof pad, water vapor permeability roof membranes, vapor barrier membrane, reinforced straight thread and other civil engineering materials. http://www.shiditg.com/