... colourful zine plated,hot dip galvanized,mechanical plated,black finished DIN:976 Threaded RodThreaded Rod,such as bright,zinc plated, ... colourful zine plated,hot dip galvanized,mechanical plated,black finishedDIN: ... zinc,copper,hot dip zinc,mechanical plated.Years of threaded rod export experience make our threaded rod popular all over the ...