雙(shuang)壁(bi)纖(xian)維(wei)(wei)(wei)網(wang)鋼(gang)骨架(jia)(jia)復(fu)合管以聚(ju)乙(yi)(yi)烯（PE）樹脂為原(yuan)材料，采(cai)用(yong)雙(shuang)層共(gong)擠工(gong)藝成(cheng)型為內(nei)壁(bi)藍色、外壁(bi)黑(hei)色的內(nei)層“凹”形(xing)中(zhong)空板(ban)帶(dai)，用(yong)鍍(du)鋅鋼(gang)帶(dai)軋制(zhi)成(cheng)型為“Ω”形(xing)的鋼(gang)骨架(jia)(jia)機械卡扣在“凹”形(xing)中(zhong)空板(ban)帶(dai)中(zhong)作為主要支撐結構，外壁(bi)用(yong)纖(xian)維(wei)(wei)(wei)網(wang)（玄武巖纖(xian)維(wei)(wei)(wei)或玻璃(li)纖(xian)維(wei)(wei)(wei)）增強的復(fu)合聚(ju)乙(yi)(yi)烯層，使用(yong)纏繞成(cheng)型工(gong)藝，加工(gong)制(zhi)成(cheng)內(nei)壁(bi)平(ping)直光滑、外壁(bi)呈螺旋波紋狀的雙(shuang)壁(bi)纖(xian)維(wei)(wei)(wei)網(wang)鋼(gang)骨架(jia)(jia)復(fu)合管（簡稱“DFSP”管道）。