The metal ring top of dust collector filter bags means the bag top is with round metal ring. Normally the ring thickness is 6mm, the ring material can be galvanized steel and stainless steel.
The dust filter bags which are with metal ring are normally woven fiberglass filter bags and needle punched felt filter bags.
Shanghai Indro Industry Co., Ltd is professional filter bag manufacturer, we offers dust filter bags with metal ring top. Before production, we shall know the ring diameter and bag top outer diameter, or bag top inner diameter and ring thickness.
