Blister were observed in the surface of square pipe after being hot zinc-plated.
方管表面热镀锌后出现不同程度的鼓泡现象。
The product quality carbon structural steel, zinc-plated aluminum alloy made from rare earth.
该产品采用优质碳素结构钢，表面镀稀土锌铝合金制造而成。
The production is made of quality carbon steel, surface is plated with zinc.
本产品由优质碳钢制成，外表镀锌。
Surface of rod body zinc plated.
杆端体表面镀锌。
Surface of rod body zinc plated.
杆端体表面镀锌。
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