转接接头 meaning in English

adapter coupling
plug adapter

Aluminium alloy a - b - adaptor for nominal pressure 16
标称压力为16的铝合金a - b型转接接头
Aluminium alloy b - c - adaptor for nominal pressure 16
标称压力为16的铝合金b - c型转接接头
Aluminium alloy c - d - adaptor for nominal pressure 16
标称压力为16的铝合金c - d型转接接头
Railway transport equipment . industrial wagons . 50 mm air adaptor coupling
铁路运输设备.工业货车. 50mm气体导管转接接头
Aerospace series - pipe coupling 8 o30 ' in titanium alloy - adaptors with lockring
航空航天系列. 8 30 '钛合金管接头.锁环转接接头