The utility model belongs to a scope of electric pipe connection pieces, in particular to a muff-coupling clamping closed galvanized steel conduit joint device.
本实用新型公开了属于电气管线连接件范围，特别涉及一种套接紧定式封闭型镀锌钢导管接头装置。
Joint fissures and various primary fractures are mainly developed in volcanic conduit facies.
火山通道相主要发育节理缝和各种原生裂隙。
Waterproof sealing of municipal project, sewage conduit, sealing of dilatation joint of tunnel and road project, adhesion and sealing of ceramics.
市政工程、排污管道的防水密封等，隧道及道路工程的混凝土伸缩缝密封，陶瓷工程的粘接及填缝密封。
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