CHDQB50-20D规格参数
相关型号
CHDQB50-20DM CHDQB50-25D CHDQB50-30D CHDQB50-30DM CHDQB50-40DM CHDQB50-75DM CHDQB63-100DM CHDQB63-10D CHDQB63-20D CHDQB63-20DM