镀锌方管表面有热浸镀或电镀锌层的焊接方管。镀锌可增加方管的抗腐蚀能力,延长使用寿命。镀锌管的用途很广,除作输水、煤气、油等一般低压力流体的管线管外,还用作石油工业特别是海洋油田的油井管、输油管,化工焦化设备的油加热器、冷凝冷却器、煤馏洗油交换器用管,以及栈桥管桩、矿山坑道的支撑架用管等。
The surface of galvanized square pipe is welded square pipe with hot dip or galvanized layer. Galvanizing can increase the corrosion resistance of square pipe and prolong its service life. Galvanized pipes are widely used in petroleum industry, especially in offshore oil fields, oil wells, pipelines, oil heaters, condensation coolers, coal distillation oil washer exchangers, trestle pipe piles and support pipes for mine tunnels.

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