DN1200双股供水管

集(ji)(ji)中(zhong)供热(re)通(tong)(tong)道(dao)网的安排好(hao)有枝(zhi)状(zhuang)和(he)(he)(he)环(huan)状(zhuang)这两(liang)种(zhong)之本事态。往往干管(guan)(guan)(guan)(guan)和(he)(he)(he)通(tong)(tong)道(dao)了解，分为枝(zhi)丫状(zhuang)；后(hou)一个通(tong)(tong)道(dao)纵行另(ling)一半(ban)无法接通(tong)(tong)分为环(huan)状(zhuang)。集(ji)(ji)中(zhong)供热(re)通(tong)(tong)道(dao)网由浩繁暖(nuan)气(qi)(qi)管(guan)(guan)(guan)(guan)毗(pi)连(lian)而(er)成，暖(nuan)气(qi)(qi)管(guan)(guan)(guan)(guan)的资料(liao)可分非材料(liao)管(guan)(guan)(guan)(guan)（建(jian)(jian)筑合金(jin)材料(liao)制(zhi)品土管(guan)(guan)(guan)(guan)、塑(su)胶片(pian)管(guan)(guan)(guan)(guan)、激发波璃玻纤管(guan)(guan)(guan)(guan)、钢塑(su)和(he)(he)(he)好(hao)管(guan)(guan)(guan)(guan)、钢套(tao)筒预应力水(shui)泥水(shui)泥土应变建(jian)(jian)筑合金(jin)材料(liao)制(zhi)品土管(guan)(guan)(guan)(guan)等(deng)）和(he)(he)(he)材料(liao)管(guan)(guan)(guan)(guan)（塑(su)料(liao)管(guan)(guan)(guan)(guan)、球墨塑(su)料(liao)管(guan)(guan)(guan)(guan)、塑(su)料(liao)管(guan)(𝓀guan)(guan)(guan)等(deng)）。