菌头 meaning in English

truss head

Ventilation plants on ships - mushroom ventilaton heads
船舶通风设备.菌头形通风口盖
Rech . slotted mushroom head screws . sim thread
开槽菌头螺钉. sim螺纹
' poelie ' . rl z tapping screws . cross recessed mushroom head " poelier " . symbol rl z
自攻螺钉.十字槽菌头螺钉
Raised mushroom head rivets
半凸起菌头铆钉
Railway vehicles - mushroom head anchor screws with metric iso thread - class c
铁路车辆.带iso米制螺纹的菌头地脚螺栓. c级