... multi-layer ribbons are slit with heat to provide an even sealed edge. certified by ISO9001: FDA,ROSH. nylon filter ... for tea bag,Filter Mesh, air filter,flour screen, Yellow Mesh,Conveyor Belt, blood filter,medicinal filter etc..Application:Widely used ... printing, fabric printing, glass printing and stamping and industrial filter production.Features: 1) Materials: polyester threads, nylon threads,) ...