鑄(zhu)鐵排水管B型配件(jian)(jian)S門彎(wan)S型鑄(zhu)鐵門彎(wan)帶(dai)有(you)(you)可開啟,拆卸檢查蓋的配件(jian)(jian),是同向(xiang)水封(feng),其排水接管為立管,包(bao)括管件(jian)(jian)本(ben)體S門彎(wan) 、密封(feng)蓋、鎖緊蓋、膠墊(dian),管件(jian)(jian)本(ben)體側面(mian)設(she)有(you)(you)可開啟門 ,S彎(wan)門上裝(zhuang)有(you)(you)密封(feng)蓋,并(bing)用膠墊(dian)密封(feng),管件(jian)(jian)本(ben)體兩端口處裝(zhuang)有(you)(you)鎖緊蓋,門作檢查和清通之用。