Ball joint housing is an outer ring of radial spherical plain bearing, made of zinc base alloy.
球头座为向心关节轴承的外圈，由锌基合金制成。
The invention discloses a connecting mechanism of sealed insulation pipelines, comprising a straight-through joint, an insulation cap, a spherical joint, an insulation sleeve ring and a cap nut.
本发明公开了一种密封绝缘管路连接机构，包括直通接头、绝缘帽、球型接头、绝缘套 环和外套螺母。
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