3240 epoxy board (our company calls it 3240-A or Grade A epoxy board) generally has A B-level temperature resistance. It has higher mechanical properties and strength below the normal temperature of 130 degrees, and its electrical performance is relativel
Packing sponge refers to the sponge pressed into different shapes according to the purpose in production and processing, so as to make a difference between the traditional square foam.
This Film blow machine is A+B+A 3 layer co-extrusion plastic film blowing machine,which could produce perfect PE film and achieves energy saving & low consumption.