cup valve bell shaped valve  杯形阀; 钟形阀

cup valve(bell-shaped valve)  钟形阀; 杯形阀

bell shaped valve  钟形阀

bell- shaped valve cup valve  钟形阀; 杯形阀

bell-shaped valve  钟形阀

bell-spaped valve  钟形阀

gas valve valve seat  气门-门座

valve-valve base  气门-气门座

Valve-valve seat  气门-气门座

auxiliary valve relief valve setting  辅助阀安全阀调定

blade control valve relief valve  铲刀控制阀安全阀

brake valve relief valve  制动阀安全阀

butterfly valve + non-return intake valve  蝶阀+止回阀式进气阀

clack valve clap valve  蝶形阀

cooling valve charge relief valve pressure test  冷却阀加注安全阀压力试验

dead-weight safety valve (weighted valve)  重码安全阀

drum selector valve protection relief valve pressure test  卷筒选择器阀防护安全阀压力试验

Energy saving on valve plate of hot blast valve  热风阀阀板的节能探讨

four valve control valve group  四阀控制阀组件