4-72型A、C式不锈钢通风机
GUANJIANCI：SANHEFENGJI、BOLIGANGFANGFUFENGJI、SULIAONAIFUFENGJI、BOLIGANGSUANWUJINGHUATA、PPSUANWUJINGHUATA
BANQUANSUOYOU：GUANGDONGSANHEHUANBAOTONGFENGSHEBEIYOUXIANGONGSIJISHUZHICHI：
