Common sizes for inspection well molds: inner diameter 100cm, outer diameter 120cm; inner diameter 100cm, outer diameter 140cm; inner diameter 125cm, outer diameter 165cm; inner diameter 150cm, outer diameter 190cm, sizes available for customization. Inspection well molds play a significant role in urban pipeline renovations, including drainage, water supply, cable, gas, and telecommunications pipelines. They come in very standard models and specifications, offering more advantages compared to brick-lined wells and plastic wells. Inspection well molds: They cover a wide range, including square, rectangular, circular, and elliptical styles, with sizes ranging from φ700 to φ1500. They consist of the well chamber and base, making installation quite convenient.