锡林郭勒盟Elbow 45 °, 90 °
锡林郭勒盟Equal tee T (s)
锡林郭勒盟Reducing tee T (R)
锡林郭勒盟Concentric reducer R (c)
锡林郭勒盟Eccentric reducer R (E)
锡林郭勒盟Cap