China Filtrum Pannum 400 Mesh Chemical Fiber Industrial Filtrale Diver Filter Mesh
macula tria stratis glutinosa 200 reticuli + 50 reticulum 50 reticulum, colum rate 77 micron; Quinque laminis labris reticulum labris mat 400mesh+50mesh+50mesh+50mesh, colum rate 38 micron
