片语
Safety y valve seat安全阀座
safety shut valve安全切断阀
Diaphragm Safety Relief Valve膜片式安全阀
safety lock valve安全锁阀
jacket safety relief valve保温套安全阀
safety-valve system安全阀体制
relief valves[机] 安全阀;释压阀
pre safety interlock valve压力机用安全联锁阀
safety isolating valve安全隔离阀
safety relay valve安全继动阀
protection valve安全阀