... side blue, one side grey 4.Durable, corrosion-resistant Products: factory use cover tarpaulin Material: HDPE High-Density polysthylene Weaving condition ... triangle plastic sheet Characterics: Binding resistant, press resistand, water-proof, sun-resisitant, anti-aging, tear proof, antifreeze, corrosion-resistant. Application: ... advance or D/P or Irrevocable L/C at sight factory use cover tarpaulin