雙(shuang)(shuang)壁(bi)纖(xian)維(wei)網(wang)(wang)鋼(gang)(gang)骨(gu)架(jia)復(fu)合(he)管(guan)以聚乙烯（PE）樹脂為原材料(liao)，采(cai)用(yong)雙(shuang)(shuang)層共(gong)擠工藝成(cheng)型為內壁(bi)藍色、外壁(bi)黑(hei)色的內層“凹”形中(zhong)空(kong)板(ban)帶，用(yong)鍍鋅鋼(gang)(gang)帶軋制(zhi)(zhi)成(cheng)型為“Ω”形的鋼(gang)(gang)骨(gu)架(jia)機械卡扣在“凹”形中(zhong)空(kong)板(ban)帶中(zhong)作為主(zhu)要(yao)支(zhi)撐(cheng)結構，外壁(bi)用(yong)纖(xian)維(wei)網(wang)(wang)（玄(xuan)武巖纖(xian)維(wei)或玻璃纖(xian)維(wei)）增強(qiang)的復(fu)合(he)聚乙烯層，使用(yong)纏繞成(cheng)型工藝，加工制(zhi)(zhi)成(cheng)內壁(bi)平直(zhi)光滑、外壁(bi)呈(cheng)螺旋波紋狀的雙(shuang)(shuang)壁(bi)纖(xian)維(wei)網(wang)(wang)鋼(gang)(gang)骨(gu)架(jia)復(fu)合(he)管(guan)（簡稱“DFSP”管(guan)道(dao)）。