筛网多用金属线(少数用非金属线)编织而成,也有在金属板上冲出间断的缝隙,再拉伸成网的(这样的通常叫钢板网或张拉网)。筛网的用途有筛分、过滤、隔离、电磁屏蔽,也有利用金属网的散热作用,装在易燃易爆气体的通道内,借以阻止明火引燃、 Screens and more use of metal lines (a few with non-metallic wire) woven, there are punched out of the intermittent gap in the metal plate, and then stretched into the network (such is usually called net board or tension net). The use of the screen sieving, filtering, isolation, electromagnetic shielding, but also the use of metal mesh cooling effect, installed in the channel of flammable and explosive gases, in order to prevent open flame ignition,