1.
Assembly Corona Ring outside diameter is 320mm,inner diameter is 220mm, Tube diameter is 50mm, tube Wall thickness is 2.5mm, mounting hole diameter is 18.87mm
2.
Surface finish is polished bright (debur and no break sharp edges
3.
Ring body material is 1060 aluminum, ring holding clamp material are Al 1060
4.Corona Assy ring set includes two aluminum holding clamps and one corona ring body and 2 sets of M.S galvanized material fasteners. Each M.S galvanized fastener sets(2 pcs M8 bolts, 2 nuts, 2 spring washers, 2 flat gaskets)