| 摘要 |
1337242 Pipe couplings FOSROC AG 5 Nov 1971 [14 Nov 1970] 54320/70 Heading F2G In a longitudinally split junction member, optionally for electrical cable conduits 8, locking rings 10, 11 engage split screw threads 2. The parts may be moulded from polyvinyl chloride and when assembled, with bosses 6 in sockets 7 and ribs 3 and in interengagement, 0-rings 12 provide a dust and moisture proof seal at the conduit connections. |
