供应华为交换机S3700-52P-EI-AC ¥6000.00 供应华为交换机S3700-28TP-EI-24S-AC ¥8800.00 供应华为交换机S3700-28TP-EI-AC ¥4000.00 供应华为CE交换机CloudEngine 6870-48S6CQ 面议 供应华为交换机S2720-28tp-ei-ac ¥1450.00 供应华为交换机S2700-9TP-EI-AC ¥800.00