DN1200直連線自來水

自(zi)(zi)來水供(gong)(gong)(gong)電(dian)供(gong)(gong)(gong)電(dian)管(guan)(guan)(guan)(guan)道的(de)擺置有枝狀(zhuang)(zhuang)和(he)環狀(zhuang)(zhuang)兩個差不多結(jie)構(gou)類型。前面干管(guan)(guan)(guan)(guan)和(he)排軟(ruan)(ruan)管(guan)(guan)(guan)(guan)非常(chang)明顯，組成樹(shu)根狀(zhuang)(zhuang)；后(hou)一個供(gong)(gong)(gong)電(dian)管(guan)(guan)(guan)(guan)道橫縱之間接聽電(dian)話組成環狀(zhuang)(zhuang)。自(zi)(zi)來水供(gong)(gong)(gong)電(dian)供(gong)(gong)(gong)電(dian)管(guan)(guan)(guan)(guan)道由無數軟(ruan)(ruan)管(guan)(guan)(guan)(guan)連到而成，軟(ruan)(ruan)管(guan)(guan)(guan)(guan)材(cai)料可分(fen)非合金管(guan)(guan)(guan)(guan)（規格混泥(ni)土(tu)土(tu)管(guan)(guan)(guan)(guan)、可ppr管(guan)(guan)(guan)(guan)、強化玻璃鋼合成纖維管(guan)(guan)(guan)(guan)、鋼塑包(bao)覆管(guan)(guan)(guan)(guan)、鋼套筒預能力規格混泥(ni)土(tu)土(tu)管(guan)(guan)(guan)(guan)等）和(he)合金管(guan)(guan)(guan)(guan)（鑄件(jian)(jian)管(guan)(guan)(guan)(guan)、球墨鑄件(jian)(jian)管(guan)(guan)(guan)(guan)、鍍(du)鋅鋼管(guan)(guan)(guan)(guan)等）。