We have Patented Productsa plastic corrugated pipe called Plastiroll, suitable for many uses,ventilation, chemical, irrigation, electrical.it stay in position, autoextinguishing, it has variable diameter and lenghtwe also produce it in Conductive (ESD Approoved) or Anthistatic plastic materialsWe also produce ashower hose called Finaflex in athossic plastic material.it agrees with KtW rules and latest Gso