... 1404, HG5-1405, HG5-1406, Standard No. Shanghai Q/SG12-1-79. Standard provides for three types of ... filter products are generally according to Shanghai Q/SG12-1-79, Q/YSZZ-88-91 standard production. 2) Used ... steel wire mesh, stainless steel wire mesh, stainless steel woven mesh, stainless steel wire cloth, Stainless steel wire mesh, stainless steel mesh, stainless steel mesh, stainless steel mesh, ...