steel work
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铝合金制件，热镀锌钢制件。
Material aluminium alloy , All parts are hot-dip galvanized steel.
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闭口销为不锈钢制件，其余为热镀锌钢制件。
The cotter pin is stainless, the other parts are hot-dip galvanized steel.
线夹本体和跳线夹为铝制件，其余为热镀锌钢制件。
The body and jumper clamp are aluminium, the other parts are hot-dip galvanized steel.
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