... round screw thread 圆螺纹 Round hole thread specifications 出线孔螺纹规格 Round Heat Thread Diameter 圆发热丝直径 ...
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My company has a variety of devices 198 Units, mainly the production of full-thread screw, double-headed stud, round nuts, rings, pin and so on.
我公司有各种设备198台，主要生产全螺纹螺杆、双头螺柱、圆螺母、吊环、销类等。
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