Mechanical filter, carbon filter, muiti-medium filter, fiber-ball filter, fiber-bundle filter, cartridge filter, sodion exchanger, zwitterion exchanger, carbon dioxide remover, acid-base bin, acid-base measure bin, acid-base transport bin, ejector, acid-mist absorber, resin trapper, resin cleaning column, resin storage bin, salt or phosphate blender ,rubber lined diaphragm with diversified rubber pipeline and pipe fitting products.