NB7H20-41PN规格参数
相关型号
NB7H20-41PW NB7H20-41PX NB7H22-21PN NB7H22-55PN NB7H22-55PW NB7H24-19PN NB7H24-19PW NB7H24-19PX NB7H24-19PY NB7H24-61PN