cylinder head outer valve spring 缸盖外气门弹簧
valve outer spring 阀外簧 ; 气门外弹簧 ; 阀杆外簧
VALVE SPRING OUTER 气门外弹簧
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The water heating control valve is composed of a valve casing, a valve outer cover, an inner cover, a pressure spring, a valve core, a positioning device and a sealing ring.
水暖控制阀由阀壳、阀外盖、内盖、压簧、阀芯、定位装置及密封圈构成。
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