Dear sirs: Square wire mesh is made of selected low carbon iron wire with precision constrction,uniform mesh,fine rust-resisting and durable function.It is widely used in industries and constructions to sieve grain poweder,fitter liquid and gas,for other purposes like safe guards on machinery enclosures.besides,it is widely appiled for the subsitute of wood strips in makeing wall and celling. specifications avaliable mesh wire gauge(BWG) 2 18,19 3 19,20,21 4 20,21,22,23 5 22,23,24,25, 6 22,23,24,25,26 7 23,24,25,26 8 24,25,26,27 10 28,29,30 12 26,27,28,29,30 square iron wire mesh is normally supplied in 100roll and width of 24,36,48 orther sizes not mentioned may be ordered in advance. If you are interested in any other of products ,please contact jack. best regards. TEL 86 318 7565269 TAX 86 318 7565268 Contact jack