tapered screw plug

基本解释锥形螺塞

网络释义

1)tapered screw plug,锥形螺塞2)tapered plug,锥塞;锥形螺纹塞3)tapered screw plug,锥形螺旋塞4)tapered piston,锥形活塞5)conical plug,锥形塞6)conical-plug valve,锥形塞阀

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