A fitting refers to a pipe component formed by pre-fabrication and assembly of pipes, flanges, pipe fittings, etc. Fittings are commonly used in pipeline construction in industries such as factories, petroleum, chemical engineering, and power. They are an important and common component in pipeline engineering. They can be customized according to specific engineering requirements and pre-fabricated in the factory in advance, reducing on-site construction time and improving construction efficiency. (Supports customized processing)

接管是指由管道、法兰、管件等部件经过预制和组装成型的管道组件。接管通常用于工厂、石油、化工、电力等行业的管道施工中，是管道工程中常见的一种重要零部件。它们可以根据具体工程需求进行定制，并提前在工厂进行预制加工，减少现场施工时间，提高施工效率。(支持定制加工）