【多选题】【消耗次数：1】
关于建筑管道的连接方式，正确的有（）
①
A铝塑复合管采用螺纹连接
②
B法兰连接一般用在主干道连接阀门、水表、水泵等处
③
C焊接适用于非镀锌钢管
④
D铜管采用专用接头或焊接
⑤
E锌钢管采用卡箍连接
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【单选题】
（）是一种较为简便的施工方式，操作简单，掌握方便，是施工中常见的连接方式，连接时只要管子切口的端面能与管子轴线保持垂直，并将切口处毛刺清理干净，管件装配时卡环的位置正确，并将螺母旋紧，就能实现铜管的严密连接，主要适用于管径50mm以下的半硬铜管的连接。
①
插接式连接
②
压接式连接
③
卡套式连接
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