Medium pressure increases toward the valve seat surface and oblique cone sealing surface squeeze is tightening, sealing the better.
正向介质压力增大时阀板斜圆锥表面与阀座密封面挤压越紧，密封效果越好。
Medium pressure increases toward the valve seat surface and oblique cone sealing surface squeezed more tightly, sealing the better.
正向介质压力增大时阀板斜圆锥表面与阀座密封面挤压越紧，密封效果越好。
One plane of the rear-floor strengthening beam is a rear spring supporting seat surface, the rear spring is installed at the lower surface of the rear spring supporting seat surface;
所述后地板加强梁上的一平面为后弹簧支座面，后弹簧安装在后弹簧支座面的下表面；
One plane of the rear-floor strengthening beam is a rear spring supporting seat surface, the rear spring is installed at the lower surface of the rear spring supporting seat surface;
所述后地板加强梁上的一平面为后弹簧支座面，后弹簧安装在后弹簧支座面的下表面；
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