Socket clevis is forgeable iron, hot galvanizing. spring catch bronze or stainless steel.

碗头挂板为可锻铸铁件，热镀锌。弹簧销为青铜件或不锈钢件。

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Socket clevis is forgeable iron, hot galvanizing. spring catch bronze or stainless steel.

碗头挂板为可锻铸铁件，热镀锌。弹簧销为青铜件或不锈钢件。

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