?螺栓连接的阀帽
... 软管联结阀软管连接阀 hose connection valve 螺栓连接阀盖 螺栓压盖 boltedbonnetBB 螺栓连接的阀帽 Bolted cap ; Bolt cap ...
?螺栓毗连的阀帽
... 管道盲板阀 line-blind valve 螺栓毗连的阀帽 bolted cap (bc) 外罗纹阀杆及阀轭 outside scre and yoke (os & y) ...
?螺帽联接的阀帽
... 螺帽联接的阀盖 bolted bonnet (BB) 螺帽联接的阀帽 bolted cap (BC) 指纹阀盖 screw bonnet ...
?螺栓衔接的阀帽
... 控制阀 control vwisve 螺栓衔接的阀帽 bolted cap (BC) 外环,锻铁 wrought iron ...
螺栓连接的阀帽
螺栓连接阀帽
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