toriconical reducer带折边锥体变径段
toriconical head折边锥形封头;带折边锥形封头;有折边的锥形封头;折边的锥形封头
Toriconical heads带折边的锥形封头
toriconical ĥ head带折边锥形封头
toriconical U head带折边锥形封头
toriconical E head有折边的锥形封头;带折边锥形封头
flanged toriconical head折边锥形封头
toriconical shell subjected折边锥体