... plastic/pvc screws 2.Materials:PVC-U,PVC-C,PP-GF 3.Standard:DIN, JIS, ANSI, BS 4.Certificate:CE, ISO9001-2008 1)Name: plastic/pvc ... screws2)Materials: PVC-C,PVC-U,PP-H,PP-GF3)Sizes: M6-M20, ... environment-friendly7)It is widely used in chemistry, electron, metallurgy, plastic, electroplate, irrigation, treatment Sewage, engineering of Recycled water, ...