Efficient foaming 、even coverage 、multi-mode 、easy operation 、durable and corrosion-resistan 、Efficient foaming 、even coverage 、multi-mode 、easy operation 、durable and corrosion-resistan 、Efficient foaming 、even coverage 、multi-mode 、easy operation 、durable and corrosion-resistan 、Efficient foaming 、even coverage 、multi-mode 、easy operation 、durable and corrosion-resistan