Designed life of pole is more than 30 years, and the galvanized surface is smooth and with the same color.
极的设计寿命是30年以上，而镀锌表面光滑，具有相同的颜色。
Galvanized substrate and silicone surface is used and after twice painting and twice baking its durability becomes well.
彩色钢板是以镀锌为基板又用硅酮作为表面，经两涂两烘加工而成，耐久性也较好。
High speed rail surface corrosion in the form of electroplating, hot dip, spray, dip, dip galvanized. High speed rail use effect.
高速护栏表面防腐形式有电镀、热镀、喷塑、浸塑，镀锌后浸塑。高速护栏使用效果。
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