发生在钢瓶阀门的减压装置、横膈膜或阀门到钢瓶的接头处的泄露不能维修。
Leaks occurring at the cylinder valve's pressure relief device, diaphragms, or valve to the cylinder connection cannot be repaired.
衬垫接头把阀门和接头机械地连接在一起的力比弹头接头的力小。
Gasketed connections do not mechanically bond the valve and connection with the same force as bullet-nose connections.
完工后房主要进行通水试压，所有接头、阀门与管道连接处都不能有渗水、漏水现象，而后还要进行防锈处理。
Upon completion of the Housing major test for water pressure, all joints, valves and pipelines connecting Department can have water seepage, leakage phenomenon, and then also for rustproof.
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