... Steel material 3.Galvanized or silicon powder 4.Anysize The Spring Filter cage is a rib of a filter bag and ... cage: carbon steel/SS304, 316, 316L2.type of cage: Any type(round, envelop, star)3.type of the horizontal bar: Any type4.surface ... with AAF, BWF, ANDREW, ALSTOM, FLSMIDTH, BATLIBOI for many years! Spring Filter cage