衡水西安DN300/SN8钢带增强缠绕管市政雨污管道钢带管每米价格环刚度达标

太原热缩套连接钢带增强缠绕管hdpe钢带波纹管DN400/SN10DN200*SN12.5实力生产厂 ¥38.00

北京钢带增强螺旋波纹管DN200*SN12.5太原钢带排水波纹管保环刚环柔质量达标 ¥38.00

农村排水管道HDPE排水钢带管排水排污钢带管江苏DN200*SN12.5DN500*12.5KN批发 ¥38.00

农村排水管道高刚度排水排污钢带管DN400/SN10钢带增强缠绕管DN500*12.5KN保环刚环柔 ¥38.00

大连钢带排水波纹管hdpe钢带波纹管dn1000/sn12.5热缩套连接DN500*12.5KN ¥38.00

小区改造排污管hdpe钢带波纹管dn1200*SN8衡水钢带排水波纹管DN600生产厂家报价 ¥38.00