根据权利要求1或2所述的金属塑料复合螺帽，其特征在于所述金属嵌件一端部的内表面为锥形的密封面。
The metal-plastic composite nut, according to Claim 1 and 2, is characterized in that the inner surface at one end of metal insert is cone-shaped sealing surface.
上述金属嵌件一端部的内表面为锥形的密封面。
The inner surface at one end of metal insert is cone-shaped sealing surface.
波纹式头部设计，防止固体颗粒从密封面上撞出，使得密封能够抵抗更高的压力和旋转速度，避免金属壳接触到密封环。
The crimped head design, prevents solids from dislodging the seal face, allows the seal to withstand higher pressure and rotational speed and eliminates the metal shell from contacting the seal ring.
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