... to welding wheels, where two copper-plated wires are welded with the nails at a certain angle, 15°to 16°, then ... cone top.Technical SpecificationsA. Model: CNC-N3 ModelCNC – N3Applicable nail types Common wire nails with smooth, annular, twistedshankApplicable nail ... x 2000mm (L)B. Model: CNC-RN ModelCNC - RNApplicable nail types Roofing nails with smooth shank or annular, twistedshankApplicable ...