1.Raw material:Aluminium tape,gate black glass. Surface treatment:Aluminium alloy 2.MOQ:10000pcs Raw material:Aluminium tape,gate black glass.Surface treatment:Aluminium alloy polishing,true colours treatment.Thread lamp holder, teeth thread is half teeth, side with small air hole.Top contact ship material is yellow brass,size is 6.5mm.Interanl glass shape:Samll glass shape bottom.External diameter:26.05mm-26.38mm.Overall length:27.0±0.50mm.Skirt side side cut craft.Main products market:Common lighting incandescent lamp. 

E27 Lamp Screw Aluminum Base