The present invention relates to a plate spring box component which includes a inner pressure ring, a external pressure ring, a inner mantle ring, a outer mantle ring, a plate spring and screws;
本发明涉及一种板弹簧盒组件，包括内压环、外压环、内垫环、 外垫环、板弹簧以及螺钉；
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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