2年 高速公路护栏网; 铁路护栏网; 机场护栏网; 边坡柔性防护网; 电焊网(电焊片; 钢筋焊接网; 圆孔网; 冲孔网; 金属围网; 勾花网; 镀锌丝网栏; 钢板网;