Sign piles, also known as warning piles, identification piles, and sign piles, are commonly used as route indication signs for buried pipelines in power, communication, gas, tap water, and railways. A new type of product used for outdoor, green belts, shrubs, and pipeline path indication on both sides of top pipes, serving as a warning.

按用途分為：電纜伟德安卓、油氣伟德安卓、通信伟德安卓、光纜伟德安卓、自來水伟德安卓、鐵路伟德安卓、公路裏程樁。主要是根據產品的用途和上麵印刷內容分類。

Classified by purpose: cable marker piles, oil and gas marker piles, communication marker piles, optical cable marker piles, tap water marker piles, railway marker piles, and highway mileage piles. Mainly classified based on the purpose of the product and the content printed on it.

按材料可分為：水泥伟德安卓、塑鋼伟德安卓、複合材料伟德安卓。複合材料伟德安卓又分為：菱鎂伟德安卓、玻璃鋼伟德安卓、樹脂加沙伟德安卓、樹脂伟德安卓。

According to materials, it can be divided into cement marker piles, plastic steel marker piles, and composite material marker piles. Composite material marker piles are further divided into: magnesite marker piles, fiberglass marker piles, resin Gaza marker piles, and resin marker piles..

管道伟德安卓一般用於水、油、氣等管道的建設。管道建成後，為了便於對管道的養護和檢修，依靠沿線設置的管道標記樁找到管道的準確位置。管道標記樁主要包括轉角樁、裏程樁、保護測試樁等，穿越鐵路、公路、較大河渠、電纜及其他管道處應設置伟德安卓，對於所有轉角都應設置轉角樁，管道在線路整處設置長久標誌裏程樁，有些危險品運輸管道的建設過程中，管道標記樁兼作保護測試樁。

Pipeline marker piles are generally used for the construction of water, oil, gas, and other pipelines. After the pipeline is completed, in order to facilitate the maintenance and repair of the pipeline, the accurate position of the pipeline is found by relying on the pipeline marker piles set up along the line. Pipeline marker stakes mainly include corner stakes, mileage stakes, protection test stakes, etc. When crossing railways, highways, large rivers, cables, and other pipelines, marker stakes should be set up. For all corners, marker stakes should be set up. Long term marker mileage stakes should be set up throughout the entire kilometer of the pipeline. In the construction process of some dangerous goods transportation pipelines, pipeline marker stakes also serve as protection test stakes.