三通：KJ3-6，KJ3-8，KJ3-10，KJ3-13，KJ3-16，KJ3-19，KJ3-25，KJ3-32，KJ3-31.5，KJ3-38，KJ3-51异径三通：KJ4-10／13，KJ4-10／16，KJ4-10／19，KJ4-10／25，KJ4-10／32，KJ4-16／25，KJ4-19／25，KJ4-16／19Y型三通：KJ3-10)