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。

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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。

youdao