The metal insert is made of lead brass and stainless steel.
上述金属嵌件由铅黄铜或不锈钢制成。
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 metal-plastic composite nut, according to Claim 1, is characterized in that the injection molding of metal insert and complete plastic layer.
根据权利要求1所述的金属塑料复合螺帽,其特征在于所述金属嵌件与塑料层整体注塑成型。
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