功(gong)能特(te)點(dian):
●真(zhen)實(shi)尺寸(cun)大小
●本(ben)糢型由(you)5節(jié)(jie)腰椎、骶(di)骨(gu)、尾骨(gu)組成(cheng)
●固定(ding)在(zai)底座(zuo)上(shang)