... crowd control, demolition events, hazardous chemical areas, for warning.Safety fence specifications:1.Material: HDPE UV ... 3.Mesh : 65*35mm, 70*40mm, ..., for your choice. Hole shape: ovel.4.Roll size: 1.0*20m ... , 1.2*50m, ..., 1.8*50m, for your ... fence colour: the most popular colour is orange, for warning.Safety fence feature: High strenght, high visibility ...