Name :insulator fitting Material:cast iron Surface treatment:sand blasted Heat treatment: Anneal. insulator fittingmaterialsurface steelzinc plating insulator fittingWe are a foundry ... 02 to 30kg 6.Application: Industrial parts, Machinery parts, hardware, construction parts, valve/valve parts,train,craft,doorhandle,hinge, ... ,machining,machining center,plating,HeatTreatment,ect Clamp Insulator fitting