头接头 meaning in Chinese

head-to-head

Ball joint for motor vehicldes
汽车用球头接头
Copper and copper alloys - plumbing fittings - fittings with short ends for capillary brazing to copper tubes
铜和铜合金.管路接头.铜管毛细管铜焊法用短端头接头
Copper and copper alloys - plumbing fittings - fittings with ends for capillary soldering or capillary brazing to copper tubes
铜和铜合金.管路接头.铜管毛细管钎焊法或铜焊法用端头接头