– Housing in hardened and zinc plated pressed metal sheet-Holes on the flange for fixing by means of screws or rivets.
– Felt sealing system-Version with the big ball made of plastic material:
– material is particularly suitable to handle gentle surfaces as glass or crystal sheets, wood panels, painted or glazed pressed metal sheets, and so on;*
– the felt sealing system is not present;
– working temperatures 0°/60°.