round nut

基本解释

They are small round cakes with meat, eggs, nuts or something sweet inside.
它们是一些有小又圆的蛋糕。里面有肉，鸡蛋，坚果或一些甜的东西。
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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。
Round up rivet nuts and hex nuts, rose to rivet widely applied in the metal plate, control box and power of products such as ark of wall plate enchase craft.
圆型涨铆螺母和六角涨铆螺母，广泛应用于金属板材、控制箱及电源柜等产品壁板的镶嵌工艺。