We installed almost 300 meters WHIS®barrier for our client Provincie Utrecht. In this project we’ve combined our WHIS®top with a standard road safety barrier from Haitsma Beton. Vreeland WHIS®barrier2021-04-122021-09-14https://www.4silence.com/wp-content/uploads/2020/01/4-silence-logo-2.svg4Silencehttps://www.4silence.com/wp-content/uploads/2021/03/dsc00798-vreeland-e1624874288356.jpg200px200px