The swinging rotating joint consists of spherical body, thread joint sleeve, locking screw nut, large copper washer and two spherical rings.
本发明摆动旋转接头由球型接头体，螺纹接头套，锁紧螺帽，大铜垫和两个球面转环构成。
A typical metallic washer is made from lead or softened copper.
典型的金属垫圈用铅或软铜制作。
A typical metallic washer is made from lead or softened copper.
典型的金属垫圈用铅或软铜制作。
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