主营：孔网钢带聚乙烯复合管; 耐腐蚀孔网钢带管; 导静电孔网钢带PE管; 孔网管; 化工用孔网钢带管; 地热用孔网钢带管; 冷水用孔网钢带管; 工业用孔网钢带管; PSP-E复合管;