作者: James Blakeley
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摘要: A pipe branch fitting has a cylindrical body freely slidable along the to point where hole is pre-cut in pipe. On one side, cylinder carries screw-threaded tubular insert on which be connected. gasket between and gives seal as bears upon it tightened up. The inner end of stepped shoulder abuts periphery limits compression applied gasket. reduced diameter locates itself indicates if misaligned with hole.