RoadPearl Tempered Glass Road Studs(reflective road marker) were installed in Hangzhou Ring Expressway

Hangzhou Ring Expressway, is the national trunk line of Shanghai - Ruili and Ningbo - Hangzhou - Nanjing is an integral part of the national skeleton network is an important part of the through Hangzhou Yong, Shanghai and Hangzhou, Hangzhou - Hangzhou, Hangzhou - Jinqu Expressway and 104, 320 State Road, to solve the inter-provincial expressway transport vehicles in transit traffic, is to improve the national highway network, play a national hub of the urgent needs of the function.