square hollow end cap surface : hot galvanizing and spray-paint spec: diameter is 50,60,70,80 color: silver,yellow. we are a professional manufacter and exporter who specilizing in building hardware,decorative hardware, pipeline fitting, industrial locks,handles, and machine parts,etc.product details:material: metalbrand name: DLL-39connection: weldingsurface: hot galvanizing or spray-paintcolor: ...