单词	hole flanging
释义	hole flanging 孔翻边,翻孔
随便看	safety valve complement safety valve dome safety valve easing safety valve easing gear safety valve escape safety valvehydraulic safety valve jumping up safety valve lifting gear safety valve lifting lever safety valve mufflellr safety valve muffler safety valve of deaerator safety valve of oil-gas bucket safety valve operation test safety valvepneumatic safety valve pressing sleeve safety valve relief SAFETY VALVES FOR HEATING INSTALLATIONS safety valve spring safety valve testing safety valve testing bed safety valve turrent swash plate safety valve turret safety valve turret swash plate safety variable