February 22, 2016 systema Construction Equipment As the years pass by, our clients needs have been included in our catalogue. Here we include products usually on stock for fast delivery. BARRICADES Crowd Control Barricades, Steel Barricades & Police Barricades. STAINLESS STEEL NETS Multifunctional stainless steel nets. RETRACTABLE BARRIERS Crowd Control Barriers with retractable tape. Indoor crowd control.