1.Name:plastic/pvc screws 2.Materials:PVC-U,PVC-C,PP-GF 3.Standard: ... , JIS, ANSI, BS 4.Certificate:CE, ISO9001-2008 1)Name: plastic/pvc screws2)Materials: PVC-C,PVC-U,PP-H,PP ... environment-friendly7)It is widely used in chemistry, electron, metallurgy, plastic, electroplate, irrigation, treatment Sewage, engineering of Recycled water, Aquatic Culture ...